Wikidata:Database reports/Complex constraints

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This is a list of complex constraints. See also Wikidata:Database reports/Complex constraint violations

Last update: 2018-12-11. row template

Entity Title Description Violations
Russia (Q159) Russia is used as nationality for people dead before 1991-12-25 Items with country of citizenship (P27) equal to Russia (Q159) and date of death (P570) before 1991-12-25 581
Russia (Q159) Russia is used as born place qualifier value for people born before 1991-12-25 Items with country (P17) qualifier of place of birth (P19) equal to Russia (Q159) and date of birth (P569) before 1991-12-25 0
Russia (Q159) Russia is used as death place qualifier value for people dead before 1991-12-25 Items with country (P17) qualifier of place of death (P20) equal to Russia (Q159) and date of death (P570) before 1991-12-25 0
Poland (Q36) Poland is used as nationality for people dead before 1918-11-11 Items with country of citizenship (P27) equal to Poland (Q36) and date of death (P570) before 1918-11-11 3107
Poland (Q36) Poland is used as death place qualifier value for people dead before 1918-11-11 Items with country (P17) qualifier of place of death (P20) equal to Poland (Q36) and date of death (P570) before 1918-11-11 0
Poland (Q36) Poland is used as death place qualifier value for people dead after 1918-11-11 Items with country (P17) qualifier of place of death (P20) equal to Poland (Q36) and date of death (P570) after 1918-11-11 0
Soviet Union (Q15180) USSR is used as nationality for people dead before 1922-12-30 Items with country of citizenship (P27) equal to Soviet Union (Q15180) and date of death (P570) before 1922-12-30 0
Soviet Union (Q15180) USSR is used as nationality for people born after 1991-12-26 Items with country of citizenship (P27) equal to Soviet Union (Q15180) and date of death (P570) after 1991-12-26 0
Soviet Union (Q15180) USSR is used as born place qualifier value for people born before 1922-12-30 Items with country (P17) qualifier of place of birth (P19) equal to Soviet Union (Q15180) and date of birth (P569) before 1922-12-30 0
Soviet Union (Q15180) USSR is used as death place qualifier value for people dead before 1922-12-30 Items with country (P17) qualifier of place of death (P20) equal to Soviet Union (Q15180) and date of death (P570) before 1922-12-30 0
Soviet Union (Q15180) USSR is used as born place qualifier value for people born after 1991-12-26 Items with country (P17) qualifier of place of birth (P19) equal to Soviet Union (Q15180) and date of birth (P569) after 1991-12-26 0
Soviet Union (Q15180) USSR is used as death place qualifier value for people dead after 1991-12-26 Items with country (P17) qualifier of place of death (P20) equal to Soviet Union (Q15180) and date of death (P570) after 1991-12-26 0
Russian Soviet Federative Socialist Republic (Q2184) RSFSR is used as nationality Items with country of citizenship (P27) equal to Russian Soviet Federative Socialist Republic (Q2184) 0
Russian Soviet Federative Socialist Republic (Q2184) RSFSR is used as born place qualifier value for people born before 1922-12-30 Items with country (P17) qualifier of place of birth (P19) equal to Russian Soviet Federative Socialist Republic (Q2184) and date of birth (P569) before 1922-12-30 0
Russian Soviet Federative Socialist Republic (Q2184) RSFSR is used as death place qualifier value for people dead before 1922-12-30 Items with country (P17) qualifier of place of death (P20) equal to Russian Soviet Federative Socialist Republic (Q2184) and date of death (P570) before 1922-12-30 0
Russian Soviet Federative Socialist Republic (Q2184) RSFSR is used as born place qualifier value for people born after 1991-12-12 Items with country (P17) qualifier of place of birth (P19) equal to Russian Soviet Federative Socialist Republic (Q2184) and date of birth (P569) after 1991-12-12 0
Russian Soviet Federative Socialist Republic (Q2184) RSFSR is used as death place qualifier value for people dead after 1991-12-12 Items with country (P17) qualifier of place of death (P20) equal to Russian Soviet Federative Socialist Republic (Q2184) and date of death (P570) after 1991-12-12 0
Russian Empire (Q34266) Russian Empire is used as nationality for people dead before 1721-10-22 Items with country of citizenship (P27) equal to Russian Empire (Q34266) and date of death (P570) before 1721-10-22 1
Russian Empire (Q34266) Russian Empire is used as nationality for people born after 1917-09-14 Items with country of citizenship (P27) equal to Russian Empire (Q34266) and date of death (P570) after 1917-09-14 4
Russian Empire (Q34266) Russian Empire is used as born place qualifier value for people born before 1721-10-22 Items with country (P17) qualifier of place of birth (P19) equal to Russian Empire (Q34266) and date of birth (P569) before 1721-10-22 0
Russian Empire (Q34266) Russian Empire is used as death place qualifier value for people dead before 1721-10-22 Items with country (P17) qualifier of place of death (P20) equal to Russian Empire (Q34266) and date of death (P570) before 1721-10-22 0
Russian Empire (Q34266) Russian Empire is used as born place qualifier value for people born after 1917-09-14 Items with country (P17) qualifier of place of birth (P19) equal to Russian Empire (Q34266) and date of birth (P569) after 1917-09-14 0
Russian Empire (Q34266) Russian Empire is used as death place qualifier value for people dead after 1917-09-14 Items with country (P17) qualifier of place of death (P20) equal to Russian Empire (Q34266) and date of death (P570) after 1917-09-14 0
Ukraine (Q212) Ukraina is used as nationality for people dead before 1991-08-24 Items with country of citizenship (P27) equal to Ukraine (Q212) and date of death (P570) before 1991-08-24 932
Ukraine (Q212) Ukraina is used as born place qualifier value for people born before 1991-08-24 Items with country (P17) qualifier of place of birth (P19) equal to Ukraine (Q212) and date of birth (P569) before 1991-08-24 0
Ukraine (Q212) Ukraina is used as death place qualifier value for people dead before 1991-08-24 Items with country (P17) qualifier of place of death (P20) equal to Ukraine (Q212) and date of death (P570) before 1991-08-24 0
Czech Republic (Q213) The Czech Republic is used as country of citizenship for people dead before 1918-10-28 Items with country of citizenship (P27) equal to Czech Republic (Q213) and date of death (P570) before 1918-10-28 1075
Russian Soviet Federative Socialist Republic (Q2305208) RSFSR is used as nationality for people dead before 1917-11-07 Items with country of citizenship (P27) equal to Russian Soviet Federative Socialist Republic (Q2305208) and date of death (P570) before 1917-11-07 0
Russian Soviet Federative Socialist Republic (Q2305208) RSFSR is used as nationality for people born after 1922-12-26 Items with country of citizenship (P27) equal to Russian Soviet Federative Socialist Republic (Q2305208) and date of death (P570) after 1922-12-26 1
Russian Soviet Federative Socialist Republic (Q2305208) RSFSR is used as born place qualifier value for people born before 1917-11-07 Items with country (P17) qualifier of place of birth (P19) equal to Russian Soviet Federative Socialist Republic (Q2305208) and date of birth (P569) before 1917-11-07 0
Russian Soviet Federative Socialist Republic (Q2305208) RSFSR is used as death place qualifier value for people dead before 1917-11-07 Items with country (P17) qualifier of place of death (P20) equal to Russian Soviet Federative Socialist Republic (Q2305208) and date of death (P570) before 1917-11-07 0
Russian Soviet Federative Socialist Republic (Q2305208) RSFSR is used as born place qualifier value for people born after 1922-12-26 Items with country (P17) qualifier of place of birth (P19) equal to Russian Soviet Federative Socialist Republic (Q2305208) and date of birth (P569) after 1922-12-26 0
Russian Soviet Federative Socialist Republic (Q2305208) RSFSR is used as death place qualifier value for people dead after 1922-12-26 Items with country (P17) qualifier of place of death (P20) equal to Russian Soviet Federative Socialist Republic (Q2305208) and date of death (P570) after 1922-12-26 0
sex or gender (P21) Unsourced notname gender People with instance of (P31) set to notname (Q1747829) with an unsourced sex or gender (P21) set to male (Q6581097) 94
position held (P39) Office holders shouldn't end before starting start date should be < end date. If two terms are mixed, separate statements should be made 235
position held (P39) Use specific office where available Value should be the office of the specific jurisdiction, if available. 397
instance of (P31) Multiple P31 claims lead to duplicate tuples Multiple P31 claims are unnecessary in most cases with Wikimedia-related items. Consider facet of (P1269) instead of second P31 value. 0
instance of (P31) P31=samevalue and P279=samevalue in most cases this is an oversight or item that needs update after child item(s) were added 2187
instance of (P31) P31=samevalue and P279=samevalue (indirect P279) in most cases this is an oversight or item that needs update after child item(s) were added 0
instance of (P31) Strange P31 link between parents in P279 154
instance of (P31) Avoid P31 of P279 of Q5 (P106 or other properties should be created) 453
instance of (P31) Second claim and unspecific is most cases unspecific could be replaced with specific variant 426
instance of (P31) Can't be human and possibly fictional keep only one claim 283
instance of (P31) Can't be one thing and group of things keep only one claim, split into several items: Q1880543, Q161678, Q232009 0
instance of (P31) Can't be ?item P31 ?item impossible claim or it should be a separate item 0
instance of (P31) Can't be instance of human and occupation Should not an instance of (P31) both a human (Q5) and an occupation (Q12737077). Consider using occupation (P106). 354
instance of (P31) Can't be instance of human and position Should not be an instance of (P31) both a human (Q5) and an position (Q4164871). Consider using position held (P39). 52
instance of (P31) Can't be instance of song and single Items should not be an instance of (P31) both a song (Q7366) and a single (Q134556); the release (Q2031291) (single) should be separate from the creative work (Q17537576) (song). Sitelinks should usually be attached to items about songs. Consider removing one statement (probably single (Q134556)), and creating a new item for the other entity. Songs and singles can be linked with tracklist (P658) and part of (P361). 7310
sexual orientation (P91) Claims without source Each P91 claim needs to have at least one (non Wikipedia) source 460
country (P17) countries should agree: ATE in single country current countries should have best rank, historic or disputed - normal, absolutely wrong - deprecated 267
occupation (P106) Human having received a prize for the directors but not having a statement occupation (P106) director 0
occupation (P106) Human having received a prize for the film editor but not having a statement occupation (P106) film editor 0
occupation (P106) Link to a Wikimedia disambiguation page 498
spouse (P26) Spouse dies before person is born 405
spouse (P26) Person dies before spouse is born 409
image (P18) Shared images within single item Multiple properties using same image as value 2500
shares border with (P47) Equal level violation Item is a sovereign state but value is not 125
ethnic group (P172) Claims without source Each P172 claim needs to have at least one (non Wikipedia) source 58150
creator (P170) Creator was not alive when the work was created The birth date of the creator is after the creation date or the death date of the creator is before the creation date. 0
doctoral advisor (P184) Doctoral advisor didn't live during the same time as his/her doctoral student death date of person A is before birth date of person B 11
doctoral student (P185) Doctoral student didn't live during the same time as his/her doctoral advisor death date of person A is before birth date of person B 11
award received (P166) Check veteran tree (in France) 0
award received (P166) Check the prize 'Prix du jeune écrivain de langue française' Prize for a 15 to 27 years old person 0
award received (P166) Check the prize 'Prix de Cornulier' Prize for a 4-10 years old horse 0
award received (P166) Check the prize 'Prix du Jockey Club' Prize for a 3+ years old horse 0
series (P179) Items for TV series episodes should have this Add P179 or correct P31. Limited to 500 260
series (P179) Use follows and followed by consistently Use of P155 or P156 pointing to an item that does not use the opposite qualifier pointing back 944
manufacturer (P176) Contemporary Constraint values of these statements should have existed at the same time as the subject 0
legislative body (P194) Countries generally have this property Create item for the legislature, add the property or use does not have part (P3113)=legislature (Q11204) on the item. 3
legislative body (P194) First-level administrative divisions generally have this property Create item for the legislature or use does not have part (P3113)=legislature (Q11204) on the item or the subdivision class. Sample: Q1208802#P3113. 200
ISBN-13 (P212) Invalid ISBN-13 ISBN-13 that have wrong checksum 118
place of birth (P19) Items with P19 = "no value" (P31=Q5) People are all born at some place 6
place of death (P20) Items with P20 = "no value" (P31=Q5) People die somewhere 0
father (P22) Father was born after his child was born birth date of person A is after birth date of person B 83
father (P22) People that are both father and mother 20
father (P22) For stepfathers, use "stepparent" use stepparent (P3448) not father (P22) for stepfathers 2
mother (P25) Mother didn't live during the same time as her child death date of person A is before birth date of person B 13
mother (P25) Mother was born after her child was born birth date of person A is after birth date of person B 23
mother (P25) For stepmothers, use "stepparent" use stepparent (P3448) not mother (P25) for stepmothers 1
stated in (P248) Value shouldn't be an item for a date use retrieved (P813) or publication date (P577) instead 1
subclass of (P279) Can't be ?class P279 ?class impossible claim or it should be a separate item 0
postal code (P281) Long postal identifiers postal identifiers having more than 50 chars 89
postal code (P281) Check French postal identifiers in France 60
postal code (P281) Check French postal identifiers of main cities in France Check last digit of main cities (Q956214) postal identifiers in France 15
postal code (P281) Check French postal identifiers of municipal arrondissement in France Check two first digits of municipal arrondissement (Q702842) postal identifiers in France 0
postal code (P281) Check postal codes in Hungary 1
postal code (P281) Check postal codes in Netherlands 34
postal code (P281) Check postal codes in Switzerland 137
IMDb ID (P345) Unsuitable IMDb identifier for human Person with IMDb identifier but prefix is not nm or ch 25
IMDb ID (P345) TV series episode without IMDB and without link to other episode instance of (P31) -> television series episode (Q21191270), but no IMDb ID (P345) and no link to a previous or next episode 929
IMDb ID (P345) TV series episode without IMDB and with other episode with link instance of (P31) -> television series episode (Q21191270), but no IMDb ID (P345), but does have a link to a previous or next episode with a IMDb ID (P345) link 129
IMDb ID (P345) TV series episode without IMDB instance of (P31) -> television series episode (Q21191270), but no IMDb ID (P345), might need to add some filters later 1885
RKDimages ID (P350) Items with more than one RKDimages link Single value constraint, but with painting series (Q15727816) and triptych (Q79218) filtered out 97
RKDimages ID (P350) Items to split up Single value constraint and painting series (Q15727816) or triptych (Q79218). New items probably need to be created and some of the id's moved there. 19
RKDimages ID (P350) Items with creator not linked to RKDartists Items that have creator (P170), but that item doesn't have RKDartists ID (P650) and also not said to be the same as (P460). Missing link can probably be added 17
Commons category (P373) Commons sitelinks to be copied to P373 property Items with no P373, but with a category in the Commons sitelink. That category can be saved as P373. 0
Commons category (P373) Commons sitelinks different from P373 property Items with sitelinks linking to a different category than the property 0
Commons category (P373) Two category items linking to the same Commons category Generally only one category item should link to a Commons category 1000
INSEE municipality code (P374) Inconsistency between the codes Place with identifier prefix indicating a departement but located in another departement. 36
INSEE municipality code (P374) Unique value A value must not be used by multiple entities at the same point in time 0
CAS Registry Number (P231) Invalid CAS number Check digit to validate the CAS number (CAS RN), Official documentation 0
ISO 3166-2 code (P300) Non-ISO 3166-2 codes for Wales The alternate Welsh codes from BS 6879 are not ISO 3166-2 codes and should be marked as deprecated. 0
language of work or name (P407) conflict with company instances of company (Q783794) should not use this property. Generally, companies don't have a language. 599
language of work or name (P407) conflict with physico-geographical object instances of physico-geographical object (Q20719696) should not use this property. Generally, physico-geographical objects don't have a language. 1
language of work or name (P407) conflict with administrative territorial entity instances of administrative territorial entity (Q56061) should not use this property. Generally, administrative territorial entities don't have a language. 14
position played on team / speciality (P413) Same value in P413 and in P106 14
IETF language tag (P305) Wikipedia categories categories combining article with other language external link (Q28373483) or article containing other language text (Q28368760) should also have P971 with a language-tag 22
ISSN (P236) Invalid ISSN ISSN that have wrong checksum 27
Rijksmonument ID (P359) Rijksmonument without ID Items that do have heritage designation (P1435): Rijksmonument (Q916333), but not this property 111
Rijksmonument ID (P359) Commons sitelink should be moved Items that have Commons category (P373) and a sitelink to Commons, but are part of another item with the same Commons category (P373), but without the sitelink 133
Mérimée ID (P380) Inconsistency between the identifier and the location Place with identifier prefix indicating a departement but located in another departement. 15
partner (P451) Partner didn't live during the same time as subject death date of person A is before birth date of person B 7
character role (P453) Missing characters Items with character role (P453) qualifier which are missing the same characters (P674) 4727
character role (P453) Missing character roles Items with characters (P674) and cast member (P161) but without the same character role (P453) qualifier 437
author (P50) Duplicate between author and short author name at a given position in an authoring list Identical series ordinal (P1545) for both a author (P50) and a author name string (P2093) statement 0
ORCID iD (P496) People, who died before launching ORCID ORCID launched its registry services and started issuing user identifiers on 16 October 2012. ORCID identifiers for people, who died before 2012 are usually locked or invalid. 2
ULAN ID (P245) Probably death People with ULAN ID (P245) born before the year 1900, but no date of death (P570) 472
ULAN ID (P245) Missing Library of Congress authority ID People with ULAN ID (P245), but no link to Library of Congress authority ID (P244). This is based on a federated query which gets all ULAN entries with a LOC link from the Getty and compares it with the items here that have an ULAN link, but no LOC link. 2051
ULAN ID (P245) Male according to Wikidata, female according to ULAN People with ULAN ID (P245) where sex or gender (P21) is set to male (Q6581097), but the ULAN entry links to http://vocab.getty.edu/aat/30018955 138
ULAN ID (P245) Female according to Wikidata, male according to ULAN People with ULAN ID (P245) where sex or gender (P21) is set to female (Q6581072), but the ULAN entry links to http://vocab.getty.edu/aat/300189559 414
Canadian Register of Historic Places ID (P477) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 331
has part (P527) relations between instances and classes must use P2670 if a concrete object is made out of classes, has parts of the class (P2670) instead of has part (P527) must be used. 2662
date of birth (P569) Wrong calendar People born before 1582 whose birth date is registered using Proleptic Gregorian calendar (Q1985727) instead of Proleptic Julian calendar (Q1985786). 1000
date of birth (P569) Probably death People born before the year 1900, but no date of death (P570) 1000
date of birth (P569) Items with P569 = "no value" (P31=Q5) People are all born at some point in time 2
date of birth (P569) Probably wrongly used as birthday use birthday (P3150) for birthday (if full birth year isn't known). 4
date of death (P570) Wrong calendar People died before 1582 who's death date is registered using Proleptic Gregorian calendar (Q1985727) instead of Proleptic Julian calendar (Q1985786). 1000
date of death (P570) Probably died People born before the year 1900, but no date of death (P570) 1000
date of death (P570) Items with P570 = "no value" (P31=Q5) Most people are not immortal 0
date of death (P570) Check horse longevity 0
start time (P580) Claim ends before its start On the same claim, end time (P582) has earlier value than start time (P580) 475
time of spacecraft landing (P620) Claims without source Each P620 claim needs to have at least one source 125
Quebec cultural heritage directory ID (P633) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 102
captain (P634) All captains should be sportspeople Clubs with captains who are not sportspeople 5
NRHP reference number (P649) Items without ID Items that do have place listed on the National Register of Historic Places (Q19558910) or NRHP district (Q20856087) in heritage designation (P1435), but not NRHP reference number (P649) 1000
NRHP reference number (P649) National Historic Landmark but not listed on the National Register of Historic Places Items who are designated National Historic Landmark (Q624232), but are not listed as place listed on the National Register of Historic Places (Q19558910) or NRHP district (Q20856087) 11
NRHP reference number (P649) National Memorial, National Historic Site or National Military Park but not listed on the National Register of Historic Places Items who are National Memorial of the United States (Q1967454) National Historic Site (Q1258086) or Q203676, but are not listed as place listed on the National Register of Historic Places (Q19558910) or NRHP district (Q20856087) 23
NRHP reference number (P649) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 1000
NRHP reference number (P649) Items who don't have a ressource type Items that do have place listed on the National Register of Historic Places (Q19558910) in heritage designation (P1435), but not the qualifier subject has role (P2868) with NRHP building (Q47162123), NRHP district (Q20856087), NRHP structure (Q47162146), NRHP site (Q47162186) or NRHP object (Q47162172). 1000
RKDartists ID (P650) Works with creator missing link List of works that have RKDimages ID (P350) set, but that creator doesn't have a RKDartists ID (P650) link 6
RKDartists ID (P650) Probably death People with RKDartists ID (P650) born before the year 1900, but no date of death (P570) 359
RKDartists ID (P650) Biografisch Portaal artists without RKDartists People with Biografisch Portaal number (P651) and occupation (P106) (or subclass) visual artist (Q3391743), but no RKDartists ID (P650) 117
RKDartists ID (P650) 20th-century artists without nationality People with RKDartists ID (P650) born after 1900, but no country of citizenship (P27) 1000
RKDartists ID (P650) No profession in visual art or design People with occupation (P106) but without a visual artist (Q3391743) or designer (Q5322166) profession 1000
RKDartists ID (P650) Missing label in key language Items with RKDartists ID (P650) with no label in either Dutch, English, German or French. 10
RKDartists ID (P650) Possible disambiguation in key language label Items with RKDartists ID (P650) with a label in either Dutch, English, German or French that looks like a disambiguation. 1000
Biografisch Portaal number (P651) RKDartists without Biografisch Portaal People with RKDartists ID (P650), country of citizenship (P27) -> Kingdom of the Netherlands (Q29999) and died before 1980, but no Biografisch Portaal number (P651) 272
Biografisch Portaal number (P651) Parlement & Politiek ID without Biografisch Portaal People with Parlement & Politiek ID (P1749), country of citizenship (P27) -> Kingdom of the Netherlands (Q29999) and died before 1980, but no Biografisch Portaal number (P651) 4
Biografisch Portaal number (P651) DBNL author ID without Biografisch Portaal People with DBNL author ID (P723), country of citizenship (P27) -> Kingdom of the Netherlands (Q29999) and died before 1980, but no Biografisch Portaal number (P651) 226
inventory number (P217) Missing collection Items which have collection (P195) as a qualifier of inventory number (P217), but not as a statement 1000
candidate (P726) Qualifier object has role (P3831) should have a value of the class candidate status (Q26696044) FIXME: Sample values: nominated candidate (Q26696038), candidate featured in polls (Q26696048); sample item: Q22676594#P726 0
family name (P734) Value shouldn't be an item for disambiguation pages fixme 0
World Heritage Site ID (P757) Items without ID Items that do have UNESCO World Heritage Site (Q9259) in heritage designation (P1435), but not World Heritage Site ID (P757) 224
Alberta Register of Historic Places ID (P759) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 43
Swedish minor urban area code (P776) P1448 required with exception for those installed 2015. A property P1448-constraint with an advanced exception. 19
International Standard Identifier for Libraries (P791) Check ISIL DE-MUS-* Item with an ISIL identifier with DE-MUS- prefix but not a museum 150
student (P802) Student didn't live during the same time as his/her teacher death date of person A is before birth date of person B 48
GNIS Antarctica ID (P804) Latitude should be south of 52.9 S The most northerly latitude in the GNIS Antarctica dataset is 52.9 S, so items should not be further north than that. 0
collection (P195) Missing inventory number Items which have inventory number (P217) as a qualifier of collection (P195), but not as a statement 852
official website (P856) Active WMF sites Ensure urls for active WMF sites include https and trailing slash. Sample: https://en.wikipedia.org/ not http://en.wikipedia.org/ or https://en.wikipedia.org 5
official website (P856) to www or not to www Vast majority of sites would handle www. prefix for users. Very rare dinosaurs exceptions are possible. 10
official website (P856) Websites should have this property 100
official website (P856) Webportals should have this property 54
topic's main category (P910) Items with this property should also have either P31 or P279 many lack this (below results are limited to 1000) 1000
topic's main category (P910) Items that link to a Commons category These links should be moved to the category item 0
BNE ID (P950) Check periodical literature with the "bise" prefix 1
BNE ID (P950) Check periodical literature with the "Mise" prefix 0
BNE ID (P950) Check edition with the "bima" prefix 1
BNE ID (P950) Check classes of elements having P31 22
ISBN-10 (P957) Invalid ISBN-10 ISBN-10 that have wrong checksum 197
category combines topics (P971) Values shouldn't be the same for P301 and P971 to do: remove it from either category's main topic (P301) or category combines topics (P971) 500
BAG residence ID (P981) Missing BAG links Woonplaatsen in BAG linked open data that we don't link to 0
Commons gallery (P935) Commons sitelinks different from P935 property Items with sitelinks linking to a different gallery than the property 300
Dewey Decimal Classification (P1036) Check 419.x 0
relative (P1038) Items with relative (P1038) and a more specific property which both link to the same person If the relative (P1038) statement describes the same information as another statement which uses a more specific property, the relative (P1038) statement should be removed 313
relative (P1038) Use more specific properties Use father (P22), mother (P25), spouse (P26), child (P40), etc. instead of relative (P1038) with type of kinship (P1039) 333
student of (P1066) Teacher didn't live during the same time as his/her student death date of person A is before birth date of person B 47
population (P1082) Every country should have this property TODO: add P1082 2
population (P1082) No preferred value P1082 with multiple values none of which is preferred 0
Elo rating (P1087) Non-Deprecated Elo rating after date of death date of rating > date of death and normal or preferred rank 36
Elo rating (P1087) Elo ratings with preferred rank Elo ratings with preferred rank 1
number of episodes (P1113) Television series would have this (series with end date) check limited to series that ended ( end time (P582) ) 2204
number of episodes (P1113) Television series would have this (series with episode items) check limited to series with more than 10 episode items 0
Kunstindeks Danmark Artist ID (P1138) Works with creator missing link List of works that have Kunstindeks Danmark artwork ID (P2108) set, but that creator doesn't have a Kunstindeks Danmark Artist ID (P1138) link 18
Kunstindeks Danmark Artist ID (P1138) Probably death People with Kunstindeks Danmark Artist ID (P1138) born before the year 1900, but no date of death (P570) 11
visitors per year (P1174) Missing P1174 on a Q570116 1777
manner of death (P1196) Missing manner of death (P1196), deducable from cause of death (P509) Entites from whose cause of death the manner is deducable 7281
National Heritage List for England number (P1216) National Heritage List for England without number Items that do have heritage designation (P1435): Grade I listed building (Q15700818)/Grade II listed building (Q15700834)/Grade II* listed building (Q15700831), but not this property 30839
depicts Iconclass notation (P1257) Religious paintings without genre Paintings that have a religious Iconclass code, but missing genre (P136) -> religious art (Q2864737) 0
filmography (P1283) Values to be added Filmographies which are not associated with its performer 582
OSM tag or key (P1282) Tag:sport This should be applied to instances of sport type and a few other games/etc. Expand constraint as needed 0
OSM tag or key (P1282) Tags using keys that have no entity Extracts "key" from "Tag:key=value" if there is no "Key:key" 109
Swiss parliament ID (P1307) 200 CN sans date de fin il devrait y avoir 200 membres 1
Swiss parliament ID (P1307) 46 CE sans date de fin il devrait y avoir 46 membres 1
coordinates of northernmost point (P1332) Northernmost should be North of southernmost correct where needed. FIXME: allow for exceptions based on "applies to part" qualifier. Compare with Easternmost should be east of westernmost 3
coordinates of easternmost point (P1334) Easternmost should be east of westernmost correct where needed. FIXME: allow for exceptions if not same "applies to part" qualifier; handle Q159 7
coordinates of easternmost point (P1334) Check westernmost point and easternmost point of countries 0
Art UK artist ID (P1367) Works with creator missing link List of works that have Art UK artwork ID (P1679) set, but that creator doesn't have a Art UK artist ID (P1367) link 366
Art UK artist ID (P1367) Probably death People with Art UK artist ID (P1367) born before the year 1900, but no date of death (P570) 337
heritage designation (P1435) Items who don't have location Items who don't have located in the administrative territorial entity (P131) or location (P276) 3000
Sports-Reference.com Olympic athlete ID (P1447) Human without participation (P1344) Item with a Sports-Reference.com Olympic athlete ID (P1447) identifier should have a participant of (P1344) claim for their Olympic participation 3602
Sports-Reference.com Olympic athlete ID (P1447) Human without occupation (P106) Q5 without occupation (P106) 2912
image of grave (P1442) Same image in P18 and in P1442 334
Commons Creator page (P1472) Probably death People with Commons Creator page (P1472) born before the year 1900, but no date of death (P570) 306
Commons Creator page (P1472) 20th-century artists without nationality People with Commons Creator page (P1472) born after 1900, but no country of citizenship (P27) 375
Commons Creator page (P1472) No suitable occupation People with Commons Creator page (P1472) and occupation (P106) but without a occupation that would create suitable works for Commons. The occupations are artist (Q483501), author (Q482980), botanist (Q2374149), zoologist (Q350979), cartographer (Q1734662), scientist (Q901) and subclasses of these. 1000
Commons Creator page (P1472) Missing English label Items that have Commons Creator page (P1472) but do not have English label. English label is used as a last-resort fall-back by {{Label}} when creating a name to show and without it many uses will see Q-code instead of a name. 2
sourcing circumstances (P1480) No source Statements with sourcing circumstances without reference 2500
Gertrude identifier (P1529) Not located in Brittany All items should have a P131 with a place in Britanny. 0
demonym (P1549) Statement appears to contain multiple values If there are multiple values (e.g. male and female forms), they should be entered as separate statements. 180
has quality (P1552) Instance or subclass Element with this property should also contain property instance of (P31) or subclass of (P279) 94
GeoNames ID (P1566) Items with P1889 and the same GeoNames ID as another item Items explicitly marked as being different from each other are not expected to have the same GeoNames ID. 204
lifestyle (P1576) Claims without source Each P1576 claim needs to have at least one (non Wikipedia) source 684
SIREN number (P1616) Check first digit (1 or 2 for public) First digit need to be 1 or 2 for a public organisation, source 0
SIREN number (P1616) Not having P1454 488
Cultural heritage database in Sweden ID (P1260) Missing qualifier for "raa/fmi/" values Values starting with "raa/fmi/" should always have RAÄ number (P1262) as a qualifier. 26
MessesInfo ID (P1644) Identifiants incorrects Identifiant correspondant à une église située dans un autre département 13
Art UK artwork ID (P1679) Items with creator not linked to Art UK artist ID Items that have creator (P170), but that item doesn't have Art UK artist ID (P1367). Missing link can probably be added 367
Art UK artwork ID (P1679) Items with collection not linked to Art UK collection/venue ID Items that have collection (P195), but that item doesn't have a Art UK venue ID (P1602) or Art UK collection ID (P1751) statement. Missing link can probably be added 39
Art UK artwork ID (P1679) Items with location not linked to Art UK venue ID Items that have location (P276), but that item doesn't have a Art UK venue ID (P1602) statement. Missing link can probably be added 500
inverse of (P1696) Wrong datatype Properties with an inverse that do not have entity datatype 1
native label (P1705) Single value (per input language) constraint The property should not be used more than once with the same language code per item; see Property talk:P1705#Multiculturalism for discussion 1326
phone number (P1329) Check for country code entries should start with "+" and the country code (+1 for US numbers) 0
SANDRE ID (P1717) Check countries 0
SANDRE ID (P1717) Number of countries crossed greater than or equal to three This query use a blacklist for 5 items. 1
SANDRE ID (P1717) Check length TODO: check the unit 0
Information Center for Israeli Art artist ID (P1736) Missing label in key language Items with Information Center for Israeli Art artist ID (P1736) with no label in either English or Hebrew. 1
Parlement & Politiek ID (P1749) Better name needed People with Parlement & Politiek ID (P1749) and given name (P735) of type initials instead of given names (Q19803443) 214
Smithsonian American Art Museum person/institution ID (P1795) Works with creator missing link List of works that are in collection (P195) Smithsonian American Art Museum (Q1192305) and have creator (P170) set, but that creator doesn't have a Smithsonian American Art Museum person/institution ID (P1795) link 3
senat.fr ID (P1808) Missing date of death Person born before 1916 with no date of death 27
list of episodes (P1811) list should have qualifier with series as value is a list of (P360) should be qualified with series (P179) and item for series as value 163
list of episodes (P1811) label of episode lists English labels should start with "list of" 3
list of episodes (P1811) Episode lists should be linked with this property Find is a list of (P360)=episode not used as value with this property 1306
PSS-archi ID (P1838) Inconsistency between the identifier and the location Place with identifier prefix indicating a departement but located in another departement. 14
Wikidata property example (P1855) Non-existent examples Properties with examples that do not exist at the target items 815
Dictionary of Medieval Names from European Sources entry (P1888) Names should match compare with native label (P1705) on item 12
number of children (P1971) Number of children shouldn't be lower than the number of statements with child (P40) Counts may be lower due to older data, children that didn't live to adulthood being excluded, etc 15
Museum of Modern Art work ID (P2014) Artworks in the MOMA collection without a link Items that have collection (P195) set to Museum of Modern Art (Q188740) (without the ones with an end time (P582)), but that item doesn't have Museum of Modern Art work ID (P2014). Missing link can probably be added 22
WorldFootball.net player ID (P2020) Quick check if look like a soccer player or an association football referee 3
National Gallery of Victoria artist ID (P2041) Australian artists missing DAAO ID Person from Australia with National Gallery of Victoria artist ID, but no DAAO ID 426
National Gallery of Victoria artist ID (P2041) Works with creator missing link List of works that are in collection (P195) National Gallery of Victoria (Q1464509) and have creator (P170) set, but that creator doesn't have a National Gallery of Victoria artist ID (P2041) link 174
elevation above sea level (P2044) Check minimal value for elevation in country Items with incorrect elevation value ; todo: only on item who having a single country 0
height (P2048) Unsuitable height for human Person with height and bigger than 2.72m or 272cm 2
mass (P2067) Unsuitable weight for human Person with weight and bigger than 300kg 29
author name string (P2093) Duplicate between author and short author name at a given position in an authoring list Identical P1545 for both a P50 and a P2093 statement 0
Kunstindeks Danmark artwork ID (P2108) Items with creator not linked to Kunstindeks Danmark Items that have creator (P170), but that item doesn't have Kunstindeks Danmark Artist ID (P1138). Missing link can probably be added 15
FAST ID (P2163) No instance or subclass Items with this property, but both instance of (P31) and subclass of (P279) are missing 181
FAST ID (P2163) Missing VIAF or LCAuth Items with this property, but VIAF ID (P214), Library of Congress authority ID (P244) and Library of Congress Genre/Form Terms ID (P4953) are missing 48
Museum of Modern Art artist ID (P2174) Works with creator missing link List of works that are in collection (P195) Museum of Modern Art (Q188740) or have Museum of Modern Art work ID (P2014) and have creator (P170) set, but that creator doesn't have a P21741 (P21741) link 22
P2237 (P2237) No units specified All quantity properties should have P2237 (P2237) or type of unit for this property (P2876) 428
reason for deprecation (P2241) Non-deprecated statements Items with statements qualified by reason for deprecation (P2241) that are not deprecated 0
National Gallery of Art artist ID (P2252) Works with creator missing link List of works that are in collection (P195) National Gallery of Art (Q214867) and have creator (P170) set, but that creator doesn't have a National Gallery of Art artist ID (P2252) link 40
Musée d'Orsay artist ID (P2268) Works with creator missing link List of works that are in collection (P195) Musée d'Orsay (Q23402) and have creator (P170) set, but that creator doesn't have a Musée d'Orsay artist ID (P2268) link 6
Wikidata property example for properties (P2271) Non-existent examples Properties with examples that do not exist at the target properties 14
production code (P2364) Codes that are not mere numbers are generally unique TODO: fix code or define applicable exceptions 5
production code (P2364) Codes should be unique within a series TODO: add missing series statements, fix code or define applicable exceptions 25
Thyssen-Bornemisza artist ID (P2431) Works with creator missing link List of works that are in collection (P195) Thyssen-Bornemisza Museum (Q176251) and have creator (P170) set, but that creator doesn't have a Thyssen-Bornemisza artist ID (P2431) link 4
J. Paul Getty Museum artist id (P2432) Works with creator missing link List of works that are in collection (P195) J. Paul Getty Museum (Q731126) and have creator (P170) set, but that creator doesn't have a J. Paul Getty Museum artist id (P2432) link 183
female form of label (P2521) Single value per language An item would generally have P2521 statement per language. TODO: define exceptions 100
Ramsar Sites Information Service ID (P2525) Items without ID Items that do have Ramsar site (Q20905436) in heritage designation (P1435), but not Ramsar Sites Information Service ID (P2525) 522
National Historic Sites of Canada ID (P2526) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 90
WomenWriters ID (P2533) Probably death People with WomenWriters ID (P2533) born before the year 1900, but no date of death (P570) 7
WomenWriters ID (P2533) 20th-century writers without nationality People with WomenWriters ID (P2533) born after 1900, but no country of citizenship (P27) 5
WomenWriters ID (P2533) Not an author People with occupation (P106) but without a author (Q482980) profession 330
Nationalmuseum Sweden artist ID (P2538) Works with creator missing link List of works that are in collection (P195) Nationalmuseum (Q842858) and have creator (P170) set, but that creator doesn't have a Nationalmuseum Sweden artist ID (P2538) link 127
cost of damage (P2630) Use a currency as a unit cost of dammage who don't use a curency as a unit. 0
place of detention (P2632) Real human with a fictional place of detention 0
place of detention (P2632) Error in start or end date Negative interval between end date and start date 0
geography of topic (P2633) Items with P31='geography of geographic location' should be linked with this property Todo: find the item that could link it with P2633 42
rating certificate ID (P2676) Unique value per rating property Value must be unique within the rating system it applies to (but the same value may be used by multiple systems) 10
elected in (P2715) Match P541 Target election should point back to the position using P541 (contested office) 76356
Tate artist identifier (P2741) Works with creator missing link List of works that are in collection (P195) Tate (Q430682) and have creator (P170) set, but that creator doesn't have a Tate artist identifier (P2741) link 128
Tate artist identifier (P2741) Works in wrong collection List of works that have a creator (P170) with Tate artist identifier (P2741), but where the collection is set incorrectly to one of the parts of Tate instead Tate (Q430682). 18
CNC film rating (France) (P2758) Single value (other than warning) this property generally contains a single value other than warning (CNC) (Q23817739) 0
race time (P2781) Units in qualifiers The regular constraints check for units does not work with qualifier uses; this provides an alternative check which lists all qualifier uses where the unit used is not an instance of unit of time (Q1790144) or a subclass thereof. 0
J. Paul Getty Museum object ID (P2582) In the museum without a link Items that have collection (P195)J. Paul Getty Museum (Q731126), but that don't have a J. Paul Getty Museum object ID (P2582) link 1
fax number (P2900) Check for country code Entries should start with "+" and the country code (+1 for US numbers) 0
Molendatabase verdwenen molens ID (P2903) Mill in the Netherlands without a link to any of the mill databases. instance of (P31) -> mill (Q44494) (or subclasses) and country (P17) -> Netherlands (Q55), but not Nederlandse Molendatabase ID (P2863), Hollandsche Molen ID (P2866) or Molendatabase verdwenen molens ID (P2903). 88
lighthouse range (P2929) Use for lighthouses Items for existing lighthouses would generally have this property 3075
Cultural heritage database in Austria ObjektID (P2951) Items without ID Items that do have Denkmalgeschütztes Objekt (Q1188447) in heritage designation (P1435), but not Cultural heritage database in Austria ObjektID (P2951) 19
Cultural heritage database in Austria ObjektID (P2951) located in an administrative territorial entity different from an Austrian municipality cultural heritage located in an administrative territorial entity different from an Austrian municipality – not sure whether this works, please fix it if it does not 91
Cultural heritage database in Austria ObjektID (P2951) Cultural heritage monuments not instance of (P31) cultural property (Q2065736) cultural heritage where is a Kulturgut was either not set or removed - this is nothing to fix, just to remember the query 0
Cultural heritage database in Austria ObjektID (P2951) Single value constraint violation not marked as an exception either fix or mark as an exception (add object causing the contraint violation to Cultural heritage database in Austria ObjektID (P2951), Property property constraint (P2302), single value constraint (Q19474404), qualifier exception to constraint (P2303) 323
Cultural heritage database in Austria ObjektID (P2951) Find municipalities marked as cultural heritage monuments in Austria Error, as municipalities as a whole are not cultural heritage monuments in Austria 0
permanent duplicated item (P2959) At least one of the items needs P31 = Wikimedia permanent duplicate item (Q21286738) FIXME: Add missing P31=Q21286738 or remove P2959 612
permanent duplicated item (P2959) Only one of the two items can have P31 = Wikimedia permanent duplicate item (Q21286738) FIXME: Remove P31=Q21286738 from one of the items or remove P2959 38
permanent duplicated item (P2959) Items for permanent duplicates and English labels FIXME: TBD (remove them?) 54
permanent duplicated item (P2959) Items for permanent duplicates and English description FIXME: replace with "Wikimedia permanent duplicate item" 137
permanent duplicated item (P2959) Items for permanent duplicates and statements FIXME: TBD (remove statements other than P31=Q21286738 and P2959?) 211
permanent duplicated item (P2959) Items with P31 = Wikimedia permanent duplicate item (Q21286738) or P2959 should have at least one sitelink FIXME: Merge the items, add the missing sitelinks or remove P2959/Q21286738 39
permanent duplicated item (P2959) Items with P31 = Wikimedia permanent duplicate item (Q21286738) and P2959 should only have sitelinks to multi-langoid or multiscript websites FIXME: Move sitelink, remove P2959/Q21286738, define Q21286561/Q21286559 or define exceptions 0
permanent duplicated item (P2959) Items with P31 = Wikimedia permanent duplicate item (Q21286738) and P2959 should only have links to sites that the other item has as well FIXME: Move sitelink to the other item or remove P31=Q21286738 if needed. 48
permanent duplicated item (P2959) Items with P31 = Wikimedia permanent duplicate item (Q21286738) should have this property FIXME: Add P2959 or remove P31=Q21286738, if needed replace P460 100
permanent duplicated item (P2959) Items with P31 = Wikimedia permanent duplicate item (Q21286738) and P460 FIXME: Add P2959 or remove P31=Q21286738, probably replace P460 0
archive date (P2960) Only on qualifiers and references use this property only on qualifiers and references 285
flag bearer (P3022) Qualify flag bearer with "of" and "opening ceremony" or "closing ceremony" Use flag bearer (P3022) with one of opening ceremony (Q3010369), closing ceremony (Q13454063) 230
spatial reference system (P3037) Not suitable as qualifier for property coordinate location (P625) with globe:earth This property shouldn't be used as qualifier for P625 to introduce coordinates with non-standard systems to the property 0
KML file (P3096) Item likely to be linked from this property FIXME: add P3096 to the relevant item and link the item listed or define exceptions 15
birthday (P3150) P569 with dateprecision 11 Items with this property generally wouldn't have P569 with full precision date 7
birthday (P3150) P569 with dateprecision 9 or 10 Items with this property generally wouldn't have P569 with year of birth (and references of the same quality) 14
FANTOIR code (P3182) Localisation inconsistency Inconsistency between this identifier and the INSEE municipality code (P374) of the commune of the located in the administrative territorial entity (P131). 15
FANTOIR code (P3182) Type inconsistency Inconsistency between the type and the instance of (P31). 379
Federal Heritage Buildings ID (Canada) (P3197) Items without ID Items that do have recognized federal heritage building of Canada (Q14451490) or classified federal heritage building of Canada (Q14480054) in heritage designation (P1435), but not Federal Heritage Buildings ID (Canada) (P3197) 3
UAI code (P3202) Inconsistency between the identifier and the location Place with identifier prefix indicating a departement but located in another departement. 20
UAI code (P3202) Check letter (key) See this example of check 0
Heritage Railway Station of Canada ID (P3209) Items without ID Items that do have Heritage Railway Station of Canada (Q3098283) in heritage designation (P1435), but not Heritage Railway Station of Canada ID (P3209) 0
Heritage Railway Station of Canada ID (P3209) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 15
Heritage Lighthouse of Canada ID (P3211) Items without ID Items that do have heritage lighthouse (Q15641550) in heritage designation (P1435), but not Heritage Lighthouse of Canada ID (P3211) 3
Heritage Lighthouse of Canada ID (P3211) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 4
FR SIRET number (P3215) Inconsistency between SIRET and SIREN The first nine digit of the SIREN number should be the same as the SIRET number. 1
Encyclopædia Universalis ID (P3219) Element without P31 and without P279 (and without P361) Element without P31 and without P279 (and without P361) 1404
SCAR Composite Gazetteer place ID (P3230) Latitude should be south of 60 S The most northerly latitude in the SCAR dataset is 60 S, so items should not be further north than that. 0
Fotografen.nl ID (P3269) RKDartists photographers without link People with RKDartists ID (P650) and occupation (P106) (or subclass) photographer (Q33231), but no Fotografen.nl ID (P3269) 4002
ICAA rating (P3306) Appendant category used without adequate main category Q27253957 can only be used alongside Q27253939 or Q27253940, and Q27253960 can only be used alongside any other except Q27253956 0
male form of label (P3321) Single value per language An item would generally have P2521 statement per language. TODO: define exceptions 52
PictoRight ID code (P3361) Death before 1940 People with RKDartists ID (P650) dead before the year 1940 1
PictoRight ID code (P3361) No visual artists People without a visual art profession 216
Auckland Art Gallery artist ID (P3372) Works with creator missing link List of works that are in collection (P195) Auckland Art Gallery (Q4819492) and have creator (P170) set, but that creator doesn't have a Auckland Art Gallery artist ID (P3372) link 2
Auckland Art Gallery artist ID (P3372) Probably death People with Auckland Art Gallery artist ID (P3372) born before the year 1900, but no date of death (P570) 17
sibling (P3373) Prefer over P1038 Items with at least one statement also in P1038. FIXME: remove redundant P1038 or fix P3373 1
sibling (P3373) Common parent Items with parents should share at least one parent. FIXME: check items for parents, correct/create item for common parent if needed 1197
sibling (P3373) Duplicate statements Items that seem to have multiple statements about the same sibling. User:KrBot might remove them. 18
sibling (P3373) Birthdates too far away Items that are siblings but with birthdate more than 100 years away. 0
Belvedere artist ID (P3421) Works with creator missing link List of works that are in collection (P195) Österreichische Galerie Belvedere (Q303139) and have creator (P170) set, but that creator doesn't have a Belvedere artist ID (P3421) link 0
Belvedere artist ID (P3421) Probably death People with Belvedere artist ID (P3421) born before the year 1900, but no date of death (P570) 13
INSEE arrondissement code (P3423) Inconsistency between arrondissement and departement Place with identifier prefix indicating a departement but located in another departement. 2
AS.com athlete ID (P3427) Incompatible date of birth Person was born in a time that as.com doesn't record 0
AS.com athlete ID (P3427) Not a sportsperson Person has no defined sport nor occupation related to sports 3
sports season of league or competition (P3450) Labels of items would generally have a year in it TODO: correct English label, remove statement or define exceptions 100
sports season of league or competition (P3450) Specify "operating area" for UK values TODO: if the value has country (P17)=United Kingdom (Q145), please add operating area (P2541). Sample: Q2267464 115
sports season of league or competition (P3450) Item with Q27020041 would generally have this property TODO: add P3450 100
sports season of league or competition (P3450) Value shouldn't be a disambiguation page TODO: change value 100
inferred from (P3452) Two inverse statements inferred from each other Two inverse statements inferred from each other 6
WikiSkripta ID (P3471) Element without P31 and without P279 (and without P361) Element without P31 and without P279 (and without P361) 137
Te Papa person ID (P3544) Works with creator missing link List of works that are in collection (P195) Museum of New Zealand Te Papa Tongarewa (Q915603) and have creator (P170) set, but that creator doesn't have a Te Papa person ID (P3544) link 67
Te Papa person ID (P3544) Probably death People with Te Papa person ID (P3544) born before the year 1900, but no date of death (P570) 9
candidacy in election (P3602) Elected, but not a candidate People who got elected in an election, but don't have the candidacy in election (P3602) statement for the election 60792
The Met object ID (P3634) In the MET without a link Items that have collection (P195) -> Metropolitan Museum of Art (Q160236), but that don't have a The Met object ID (P3634) link 0
Artnet artist ID (P3782) Probably death People with Artnet artist ID (P3782) born before the year 1900, but no date of death (P570) 189
Artnet artist ID (P3782) 20th-century artists without nationality People with Artnet artist ID (P3782) born after 1900, but no country of citizenship (P27) 1000
Artnet artist ID (P3782) No profession in visual art or design People with occupation (P106) but without a visual artist (Q3391743) or designer (Q5322166) profession 1000
Artnet artist ID (P3782) Missing label in key language Items with Artnet artist ID (P3782) with no label in either English or Dutch. 263
Justia Patents inventor ID (P3874) Incompatible date of birth Person lived in a time that Justia Patents doesn't record 0
Boijmans artist ID (P3888) Works with creator missing link List of works that are in collection (P195) Museum Boijmans Van Beuningen (Q679527) and have creator (P170) set, but that creator doesn't have a Boijmans artist ID (P3888) link 263
Boijmans artist ID (P3888) Probably death People with Boijmans artist ID (P3888) born before the year 1900, but no date of death (P570) 8
Boijmans artist ID (P3888) No profession in visual art, craft or design People with occupation (P106) but without a visual artist (Q3391743), artisan (Q1294787) or designer (Q5322166) profession 74
Wikidata SPARQL query equivalent (P3921) Without SELECT should be without SELECT part of the query 9
Clochers de France ID (P3963) Identifiants incorrects (département) Identifiant correspondant à une église située dans un autre département selon le code INSEE 22
Clochers de France ID (P3963) Identifiants incorrects (commune) Identifiant correspondant à une église située dans une autre commune selon le code INSEE 243
Pinakothek artist ID (P4025) Works with creator missing link List of works that are in collection (P195) Bavarian State Painting Collections (Q812285) and have creator (P170) set, but that creator doesn't have a Pinakothek artist ID (P4025) link 217
Pinakothek artist ID (P4025) Probably death People with Pinakothek artist ID (P4025) born before the year 1900, but no date of death (P570) 12
Ontario Heritage Act Register ID (P4120) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 101
Ontario Heritage Act Register ID (P4120) Items without ID Items that do have designated heritage property (part IV) (Q15080599) in heritage designation (P1435), but not Ontario Heritage Act Register ID (P4120) 30
linguistic typology (P4132) Use instead of P31/P279 values used with this property shouldn't be in P31/P279 19
Finnish National Gallery artist ID (P4177) Works with creator missing link List of works that are in collection (P195) Finnish National Gallery (Q2983474) and have creator (P170) set, but that creator doesn't have a Finnish National Gallery artist ID (P4177) link 0
Finnish National Gallery artist ID (P4177) Probably death People with Finnish National Gallery artist ID (P4177) born before the year 1900, but no date of death (P570) 16
Christie's creator ID (P4200) Works with creator missing link List of works that have Christie's object ID (P3783) set, but that creator doesn't have a Christie's creator ID (P4200) link 34
Christie's creator ID (P4200) Probably death People with Christie's creator ID (P4200) born before the year 1900, but no date of death (P570) 122
Tyrolean Art Cadastre inventory ID (P4219) located in an administrative territorial entity different from an Austrian municipality Tyrolean art located in an administrative territorial entity different from an Austrian municipality 0
Tagesschau election ID (P4247) Check the date in id 2
New York City Landmarks Preservation Commission ID (P4273) Items without ID Items that do have New York City Landmark (Q19825927) in heritage designation (P1435), but not New York City Landmarks Preservation Commission ID (P4273) 375
New York City Landmarks Preservation Commission ID (P4273) Items with pictures but no Commons Category Items that do have image (P18), but not Commons category (P373) 1
Nominis given name ID (P4284) Names would generally match compare with native label (P1705) on item 100
National Trust Collections ID (P4373) In the National Trust Collection without a link Items that have collection (P195) -> National Trust (Q333515), but that don't have a National Trust Collections ID (P4373) link 0
Opera Vivra singer ID (P4407) Check main value of voice type 7
Ecole des chartes thesis abstract ID (P4465) Check the date in id 0
mountain range (P4552) Replaces other properties Other properties to link item and value are generally not need. named after (P138) can remain as it's about the name of the dam. 783
Art Museum of Estonia artist ID (P4563) Works with creator missing link List of works that are in collection (P195) Art Museum of Estonia (Q1754105) or have Art Museum of Estonia artwork ID (P4564) and have creator (P170) set, but that creator doesn't have a Art Museum of Estonia artist ID (P4563) link 1
Art Museum of Estonia artist ID (P4563) Probably death People with Art Museum of Estonia artist ID (P4563) born before the year 1900, but no date of death (P570) 1
Art Museum of Estonia artist ID (P4563) 20th-century artists without nationality People with Art Museum of Estonia artist ID (P4563) born after 1900, but no country of citizenship (P27) 129
Art Museum of Estonia artist ID (P4563) No profession in visual art or design People with occupation (P106) but without a visual artist (Q3391743) or designer (Q5322166) profession 65
Art Museum of Estonia artist ID (P4563) Missing label in key language Items with Art Museum of Estonia artist ID (P4563) with no label in either English or Estonian. 162
Berlinische Galerie artist ID (P4580) Works with creator missing link List of works that are in collection (P195) Berlinische Galerie (Q700222) and have creator (P170) set, but that creator doesn't have a Berlinische Galerie artist ID (P4580) link 1824
Berlinische Galerie artist ID (P4580) Probably death People with Berlinische Galerie artist ID (P4580) born before the year 1900, but no date of death (P570) 0
Berlinische Galerie artist ID (P4580) 20th-century artists without nationality People with Berlinische Galerie artist ID (P4580) born after 1900, but no country of citizenship (P27) 0
Berlinische Galerie artist ID (P4580) No profession in visual art or design People with occupation (P106) but without a visual artist (Q3391743) or designer (Q5322166) profession 0
Berlinische Galerie artist ID (P4580) Missing label in key language Items with Berlinische Galerie artist ID (P4580) with no label in either English or German. 1
Städel Museum artist ID (P4581) Works with creator missing link List of works that are in collection (P195) Städel Museum (Q163804) and have creator (P170) set, but that creator doesn't have a Städel Museum artist ID (P4581) link 6
Städel Museum artist ID (P4581) Probably death People with Städel Museum artist ID (P4581) born before the year 1900, but no date of death (P570) 6
Städel Museum artist ID (P4581) 20th-century artists without nationality People with Städel Museum artist ID (P4581) born after 1900, but no country of citizenship (P27) 4
Städel Museum artist ID (P4581) No profession in visual art or design People with occupation (P106) but without a visual artist (Q3391743) or designer (Q5322166) profession 67
Städel Museum artist ID (P4581) Missing label in key language Items with Städel Museum artist ID (P4581) with no label in either English or German. 5
Art Institute of Chicago artwork ID (P4610) In the Museum without a link Items that have collection (P195) -> Art Institute of Chicago (Q239303), but that don't have a Art Institute of Chicago artwork ID (P4610) link 0
drainage basin (P4614) Replaces other properties Other properties to link item and value are generally not need. named after (P138) can remain as it's about the name of the dam. 0
Philadelphia Museum of Art ID (P4643) In the Museum without a link Items that have collection (P195) -> Philadelphia Museum of Art (Q510324), but that don't have a Philadelphia Museum of Art ID (P4643) link 0
ESCO skill ID (P4644) Items without P31 and without P279 6
reservoir created (P4661) Replaces other properties Other properties to link item and value are generally not need. named after (P138) can remain as it's about the name of the dam. 3
reservoir created (P4661) Might replace others This property might be used to replace other currently used properties. List of samples only, due to timeout problems. 3
Museum of Fine Arts, Houston object ID (P4673) In the Museum without a link Items that have collection (P195) -> Museum of Fine Arts (Q1565911), but that don't have a Museum of Fine Arts, Houston object ID (P4673) link 0
Indianapolis Museum of Art artwork ID (P4674) In the Museum without a link Items that have collection (P195) -> Indianapolis Museum of Art (Q1117704), but that don't have a Indianapolis Museum of Art artwork ID (P4674) link 0
National Gallery of Art artwork ID (P4683) In the Museum without a link Items that have collection (P195) -> National Gallery of Art (Q214867), but that don't have a National Gallery of Art artwork ID (P4683) link 0
National Gallery of Victoria artwork ID (P4684) In the Museum without a link Items that have collection (P195) -> National Gallery of Victoria (Q1464509), but that don't have a National Gallery of Victoria artwork ID (P4684) link 12
Carnegie Museum of Art ID (P4686) In the museum without a link Items that have collection (P195) -> Carnegie Museum of Art (Q1043967), but that don't have a Carnegie Museum of Art ID (P4686) link 0
Smithsonian American Art Museum ID (P4704) In the museum without a link Items that have collection (P195) -> Smithsonian American Art Museum (Q1192305), but that don't have a Smithsonian American Art Museum ID (P4704) link 0
Barnes Foundation ID (P4709) In the museum without a link Items that have collection (P195)Barnes Foundation (Q808462), but that don't have a Barnes Foundation ID (P4709) link 0
Minneapolis Institute of Art artwork ID (P4712) In the museum without a link Items that have collection (P195)Minneapolis Institute of Art (Q1700481), but that don't have a Minneapolis Institute of Art artwork ID (P4712) link 0
Walters Art Museum ID (P4713) In the museum without a link Items that have collection (P195)Walters Art Museum (Q210081), but that don't have a Walters Art Museum ID (P4713) link 0
Solomon R. Guggenheim Museum artwork ID (P4737) In the museum without a link Items that have collection (P195)Solomon R. Guggenheim Museum (Q201469), but that don't have a Solomon R. Guggenheim Museum artwork ID (P4737) link 0
Yale Center for British Art artwork ID (P4738) In the museum without a link Items that have collection (P195)Yale Center for British Art (Q6352575), but that don't have a Yale Center for British Art artwork ID (P4738) link 0
Musée des Augustins artwork ID (P4739) In the museum without a link Items that have collection (P195)Musée des Augustins (Q2711480), but that don't have a Musée des Augustins artwork ID (P4739) link 0
Brooklyn Museum artwork ID (P4740) In the museum without a link Items that have collection (P195)Brooklyn Museum (Q632682), but that don't have a Brooklyn Museum artwork ID (P4740) link 0
Commons compatible image available at URL (P4765) Items with creators without date of death These items have a known creator, but we don't know when the creator died so no way to know the work is in the public domain due to age. 243
Commons compatible image available at URL (P4765) Items with anonymous creator and no inception These items have an unknown creator and no inception so no way to know the work is in the public domain due to age. 1000
Commons compatible image available at URL (P4765) Items with creator who died after 1923 and no inception After 1923 copyright starts getting more complicated. We need to know the inception to figure out if it's in the public domain. 1000
Commons compatible image available at URL (P4765) Items with creator who died after 1923 and the creator has no country of citizenship After 1923 copyright starts getting more complicated. We need to know the country of citizenship (P27) to figure out if it's in the public domain. 610
Web umenia creator ID (P4887) Paintings with creator missing link List of paintings in collection (P195) Slovak National Gallery (Q1744024) with creator that doesn't have a Web umenia creator ID (P4887) link (can be expanded later to more types of works or more collections). 30
Web umenia creator ID (P4887) Probably death People with Web umenia creator ID (P4887) born before the year 1900, but no date of death (P570) 27
Web umenia creator ID (P4887) 20th-century artists without nationality People with Web umenia creator ID (P4887) born after 1900, but no country of citizenship (P27) 1000
Web umenia creator ID (P4887) No profession in visual art or design People with occupation (P106) but without a visual artist (Q3391743) or designer (Q5322166) profession 107
Web umenia creator ID (P4887) Missing label in key language Items with Web umenia creator ID (P4887) with no label in either English, Slovak or Czech. 1000
season (P4908) Ordinal qualifier would generally be unique within season define exceptions when needed 45
season (P4908) Ordinal qualifier on series statement would generally be unique within series define exceptions when needed 2
season (P4908) Episode titles are generally unique Currently checks English labels. Excludes a few series with repeating titles 41
season (P4908) Label of season should be different from series Seasons generally have a label in the format "[name of series], season [number]". Sometimes bot create items stripping the season number. Limited to English. See Wikidata:WikiProject_Movies/reports/TV_seasons/label/as_series. 0
season (P4908) Episodes generally have this property Episodes of television series with multiple seasons generally have this property. Limited to 500. 500
season (P4908) Episodes generally have this property (count by series) Series with most episodes lacking P4908. Limited to 100. 50
safety classification and labelling (P4952) NFPA 704 data without any of the 4 mandatory qualifiers NFPA 704 (safety classification and labelling (P4952) with NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response (Q51139288) value) should always have all 4 qualifiers (NFPA Special (P877)/NFPA Health (P993)/NFPA Fire (P994)/NFPA Instability (P995)), even if some of them have no value 712
safety classification and labelling (P4952) European GHS data without any of the 4 mandatory qualifiers GHS data based on European Union's CLP Regulation should always have all 4 qualifiers (GHS hazard pictogram (P5040)/GHS signal word (P1033)/GHS hazard statement (P5041)/GHS precautionary statement (P5042)), even if some of them have no value 0
Directory of Open Access Journals ID (P5115) Value not in P236 2
Wikimedia outline (P5125) Label English labels should start with "outline of " 0
Wikimedia outline (P5125) Outlines should be linked with this property Outlines not used as value of this property 61
season of club or team (P5138) Instances of team seasons should have this property To do: expand to subclasses 100
KIT Linked Open Numbers ID (P5176) Equivalent to numeric value Value should be equivalent to value in numeric value (P1181) 0
KIT Linked Open Numbers ID (P5176) Items for numbers up to 10000 should be available 0
KIT Linked Open Numbers ID (P5176) en label required Items with this property should have labels in English 0
KIT Linked Open Numbers ID (P5176) fr label required Items with this property should have labels in French 12
KIT Linked Open Numbers ID (P5176) cy label required Items with this property should have labels in Welsh 1
grammatical gender (P5185) Value should be one of has grammatical gender (P5109) used on language item TODO: add with has grammatical gender (P5109) to language, fix lexeme or define exception 57
grammatical gender (P5185) Catalan nouns/proper nouns should have this TODO: add appropriate value 18
grammatical gender (P5185) French nouns/proper nouns should have this TODO: add appropriate value 200
grammatical gender (P5185) Italian nouns/proper nouns should have this TODO: add appropriate value 48
grammatical gender (P5185) Latin nouns/proper nouns should have this TODO: add appropriate value 74
grammatical gender (P5185) Polish nouns/proper nouns should have this TODO: add appropriate value 71
grammatical gender (P5185) Portuguese nouns/proper nouns should have this TODO: add appropriate value 7
grammatical gender (P5185) Spanish nouns/proper nouns should have this TODO: add appropriate value 35
BAG public space ID (P5207) Streets in the Netherlands without BAG link street (Q79007) (and subclasses) with country (P17) Netherlands (Q55) that don't have a BAG public space ID (P5207) link 2000
Information Center for Israeli Art artwork ID (P5223) Items with creator not linked to Information Center for Israeli Art artist ID Items that have creator (P170), but that item doesn't have Information Center for Israeli Art artist ID (P1736) and also not said to be the same as (P460). Missing link can probably be added 29
prime factor (P5236) Items with self-links should be prime numbers 0
prime factor (P5236) Items with prime factor 2 should be even numbers 2
prime factor (P5236) Check on numeric values FIXME. Currently just sum of factors, not product nor qualifier. See Wikidata:Request_a_query#Multiplication_(a*b*c)/PRODUCT()_instead_of_SUM(?factor) 1
prime factor (P5236) A factor should be listed just once Use qualifier "quantity" instead 0
prime factor (P5236) Check value of factors Doesn't work for very large numbers 0
prime factor (P5236) Even numbers should have prime factor 2 2
prime factor (P5236) Natural numbers would generally have this property 3
Artists in Canada record number (P5239) Canadian artists in the National Gallery missing link Canadian artists (country of citizenship (P27) -> Canada (Q16)) with National Gallery of Canada artist ID (P5368), but no Artists in Canada record number (P5239) link 558
residual stroke count (P5281) Constraint between P5205 and P5281 Residual stroke count must be less than total stroke count 2
Museo del Prado artist ID (P5321) Works with creator missing link List of works that are in collection (P195) Museo del Prado (Q160112) and have creator (P170) set, but that creator doesn't have a Museo del Prado artist ID (P5321) link 44
Museo del Prado artist ID (P5321) No profession in visual art or design People with occupation (P106) but without a visual artist (Q3391743) or designer (Q5322166) profession 43
National Gallery of Canada artist ID (P5368) Works with creator missing link List of works that are in collection (P195) National Gallery of Canada (Q1068063) and have creator (P170) set, but that creator doesn't have a National Gallery of Canada artist ID (P5368) link 185
National Gallery of Canada artist ID (P5368) No profession in visual art or design People with occupation (P106) but without a artist (Q483501) (maybe replace with visual artist (Q3391743) later) or designer (Q5322166) profession 88
Norwegian Polar Institute place name ID (P5391) Unexpected coordinates Coordinates should be near Svalbard, Jan Mayen, Bouvet Island, Peter I Island or Queen Maud Land. 2
model year (P5444) Model year ±1 ≥ year of first commercialization of car model correct date of commercialization (P5204) on item for car model or define exception(s) 0
model year (P5444) Model year ≤ discontinued date of car model correct discontinued date (P2669) on item for car model or define exception(s) 0
model year code (P5461) Year should be ≥ 1980 TO DO: check values 0
Boijmans work ID (P5499) Artworks with creator not linked to Boijmans artists Items that have creator (P170), but that item doesn't have Boijmans artist ID (P3888). Missing link can probably be added 225
Boijmans work ID (P5499) Artworks in the Boijmans collection without a link Items that have collection (P195) set to Museum Boijmans Van Beuningen (Q679527) (without the ones with an end time (P582)), but that item doesn't have Boijmans work ID (P5499). Missing link can probably be added 238
Boijmans work ID (P5499) Artworks in the Boijmans collection using a described at URL (P973) to the Boijmans website Items that have collection (P195) set to Museum Boijmans Van Beuningen (Q679527) which have a link to the Boijmans website. Some formats can easily be moved, others need checking before moving 2
Belvedere object ID (P5823) Artworks in the Belvedere collection without a link Items that have collection (P195) set to Österreichische Galerie Belvedere (Q303139) (without the ones with an end time (P582)), but that item doesn't have Belvedere object ID (P5823). Missing link can probably be added 14
CPPAP ID (P5968) Check year (format: MMYY in MMYY X 11111) Max year : 5 source 0
category for films in this language (P5996) categories for films by language should be values of a statement with this property TODO add P5996 to language item 8
uses capitalization for (P6106) Month names with capitals e.g. in English ("January"). Uses calendar month (Q47018901) on values of item for this sense (P5137) 0
uses capitalization for (P6106) Proper nouns with capitals e.g. in French (" Maurétanie"). Uses proper noun (Q147276) as lexical category 5
uses capitalization for (P6106) Nouns with capitals e.g. in German ("Liebe"). Uses noun (Q1084) as lexical category 0
uses capitalization for (P6106) Place names with capitals e.g. in English ("Vatican"). Uses geographic location (Q2221906) on classes of values of item for this sense (P5137) 0
uses capitalization for (P6106) Religions with capitals e.g. in English ("Buddhism"). Uses religion (Q9174) on classes of values of item for this sense (P5137) 0
uses capitalization for (P6106) Days of the week with capitals e.g. in English ("Monday"). Uses day of the week (Q41825) on values of item for this sense (P5137) 0