Wikidata:Property proposal/Generic

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This page is for the proposal of new properties.

Before proposing a property
  1. Check if the property already exists by looking at Wikidata:List of properties (manual list) and Special:AllPages.
  2. Check if the property is already pending or has been rejected.
  3. Check if you can give it similar label and definition as an existing Wikipedia infobox parameter, or if it can be matched to an infobox, to or from which data automatically can be transferred. See WD:WikiProject Infoboxes for suggestions.
  4. Select the right datatype for the Property.
  5. Start writing the documentation based on the preload form below and add it in the appropriate section.

Creating the property

  1. Creation can be done after 1 week by a property creator or an administrator.
  2. See steps when creating properties.

Add a request

This page is archived, currently at Archive 28.

To add a request, you should use this form:

=== {{TranslateThis | anchor = en
| de = <!-- PROPERTY NAME IN German (optional) -->
| fr = <!-- PROPERTY NAME IN French (optional) -->
<!-- |xx = property names in some other languages -->
}} ===
{{Property documentation
|status                 = <!--leave this empty-->
|description            = {{TranslateThis
  | en = put English description for property here, e.g. same as in the infobox documentation
|subject item           = Qnnnnnnn <!-- item corresponding to the concept represented by the property, if applicable; example: item ORCID (Q51044) for property ORCID (P496) --> 
|infobox parameter      = put Wikipedia infobox parameters here, if existing; ex: "population" in [[:en:template:infobox settlement]]
|datatype               = put datatype here (item, string, media, coordinate, monolingual text, multilingual text, time, URL, number)
|domain                 = types of items that may bear this property; preferably use Q templates, as specialized as possible, or text. Special values (having specialized validation schemes): Persons, Taxons
|allowed values         = type of linked items (Q template or text), list or range of allowed values, string pattern...
|source                 = external reference, Wikipedia list article (either infobox or source)
|example                = sample items that would use that property, with proposed values; example: {{Q|1}} => {{Q|2}}
|filter                 = (sample: 7 digit number can be validated with edit filter [[Special:AbuseFilter/17]])
|robot and gadget jobs  = Should or are bots or gadgets doing any task with this? (Checking other properties for consistency, collecting data, etc.)
|proposed by            = ~~~
(Add your motivation for this property here.) ~~~~

For a list of infobox parameters, you might want to use table format:

{{List of properties/Header}}

{{List of properties/Row|id=
|title          = audio
|type           = media
|qualifier      =
|description    = Commons sound file
|example-subject= Q187 <!-- Il Canto degli Italiani -->
|example-object = Inno di Mameli instrumental.ogg


For blank forms, see Property documentation and List of properties/Row

Generic properties[edit]

non-free file URL[edit]

   In progress
Description Like image (P18), but for non-free files.
Data type URL
Domain all
Allowed values
  • .jpg, png, ...
Example item and value 24 Hours of a Woman's Life (Q4631883)=> (probably have better examples)
Proposed by GZWDer (talk)
  • So... how to use those links? Is those URLs are allowed to be embedded? Do they have privacy policy? Does site that uses Wikidata need to inform users that some of queries are sent to unknown website? Will this website be happy for direct-linking of images? At least, do you understand, this property will be unusable on wikimedia project without complex bot-support system on local wikis? -- Vlsergey (talk) 14:33, 15 August 2014 (UTC)
  • Symbol support vote.svg Support I've been thinking about something like this for many months. --Jakob (talk) 00:14, 16 August 2014 (UTC)
  • Symbol oppose vote.svg Oppose: Non-free images cannot be used, so I see no the point in linking to them. Regards, Dipsacus fullonum (talk) 14:03, 21 August 2014 (UTC)
  • Symbol support vote.svg Support --Eurodyne (talk) 03:49, 24 September 2014 (UTC)
  • Symbol oppose vote.svg Oppose --Micru (talk) 08:55, 18 October 2014 (UTC)
  • Symbol oppose vote.svg Oppose--Oursana (talk) 18:23, 18 October 2014 (UTC)

Pictogram voting comment.svg Comment it is not possible to use this files on wikidata, however you can link to any page on the internet, no matter what kind of copyright or user conditions apply.

@‎Giftzwerg 88: Not exactly, it is a complex issue with many nuances and with different laws depending on the country. See: w:Copyright aspects of hyperlinking and framing.--Micru (talk) 17:34, 20 October 2014 (UTC)
Laws are a different issue and usefullness or appropriateness of the links another.--Giftzwerg 88 (talk) 07:24, 21 October 2014 (UTC)
Symbol support vote.svg Support. The claim that "non-free images cannot be used" is false, in many situations, both on Wikipedias and elsewhere. For example: Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 13:07, 20 December 2014 (UTC)

sensu stricto / in the narrow sense[edit]

   In progress
Description meaning in the narrow sense
Data type qualifier-invalid datatype (not in Module:i18n/datatype)
Domain organism (Q7239), fossil (Q40614), but also other things
Allowed values organism (Q7239), fossil (Q40614), but also other things
Example item and value Sensu stricto meaning of Alum is Potassium alum (Q190527 -> Q411309), In a restrictive sense bryophyte means moss (Q29993 -> Q25347)
Proposed by Kopiersperre (talk)

Some terms have had a narrower sense in historic times. Can especially be used in taxonomy.--Kopiersperre (talk) 14:20, 14 October 2014 (UTC)

@Kopiersperre:, I do not think that really works. What does it mean that stricto sensu, alum (Q190527) means Potassium alum (Q411309) ? Items can only have one meaning, else it would be a mess. Here we are talking about the word "alum" not about item Q190527. What we may want to say is something like: "in a restrictive sense, "alum" means "Q411309", not "Q190527". One way to say this might be through qualifiers to string-type property like "Potassium alum (Q411309): name: "alum" some qualifier: stricto sensu". But that does not seem very clear. A better place for that would be the next Wikibase-based version of the Wiktionary. --Zolo (talk) 13:28, 24 October 2014 (UTC)
You're right that Alum could be better handled at Wiktionary. But for taxons I think this is needed in wikidata. In most (all?) cases there should be only one sensu stricto meaning.--Kopiersperre (talk) 17:04, 24 October 2014 (UTC)
Kopiersperre: Really? Why? --Succu (talk) 21:18, 24 October 2014 (UTC)
Because original meanings get extended in the history of science. I have no example where something has two narrower meanings.--Kopiersperre (talk) 16:39, 25 October 2014 (UTC)
Kopiersperre Would this be better done using date qualifiers. Listing the various meanings at various times with start dates and end dates? Filceolaire (talk) 20:24, 31 October 2014 (UTC)
Filceolaire For old ones you can't figure out in many cases.--Kopiersperre (talk) 13:14, 20 November 2014 (UTC)

sort key[edit]

   In progress
Description key indicating the order in which the item's label should be sorted
Data type String
Template parameter In en:Template:Persondata, de:Vorlage:Personendaten
Domain all
Allowed values strings
Source Persondata
Example item and value

Proposed by Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits

May be used as a qualifier for name in native language (P1559); or qualified by a language. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 12:46, 24 October 2014 (UTC)

Pictogram voting question.svg Question Is there an international standard how names should be sorted? As far as I know it is extremly culture-specific how names are sorted. --Pasleim (talk) 13:10, 24 October 2014 (UTC)
No idea, but we often know it, from sources, or knowledge of our own culture. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 13:26, 24 October 2014 (UTC)
Chinese names are for sure sorted by similarity of the signs and the number of lines in the signs (quite a difiicult task to know the exact order of 2500 signs) and not like the transcriptions according to the alphabet.--Giftzwerg 88 (talk) 17:25, 24 October 2014 (UTC)
In Europe and America usually by last name and then first name. --Crazy1880 (talk) 17:27, 24 October 2014 (UTC)
See de:Hilfe:Personendaten/Name (german Help) --Crazy1880 (talk) 17:29, 24 October 2014 (UTC)
Pictogram voting comment.svg Comment If it's a qualifier, string datatype would probably be sufficient. Otherwise, it might need to be a monolingual string. --- Jura 18:59, 24 October 2014 (UTC)

As a librarian, I have to warn you that this is a very complex matter that can't be simply reduced to "In Europe and America usually by last name and then first name". But, rejoice: There is a standard work of reference, it's called Names of Persons and issued by the IFLA. A scanned version of the 4th edition is available as a PDF at the IFLA website. For example, in Iceland the sort order is "First name - last name" (the last name in Iceland usually being not a family name, but a patronymic - most Icelanders don't have a family name). And there are languages such as Spanish with multi-part name where the sort order also isn't obvious. "Names of Persons" helps in these matters. Gestumblindi (talk) 23:31, 27 October 2014 (UTC)

Oh, and of course - I Symbol support vote.svg Support this proposal, as a meaningful sort order is very important. Gestumblindi (talk) 00:10, 28 October 2014 (UTC)

Pictogram voting comment.svg Comment Persondata DOES NOT contain sort value for names. The |name= is supposed to be surname, firstname. About 20% of the cases, it is entered wrong, usually firstname, surname. DEFAULSORT contains the sort value in all Biography articles. Sort value does not equal surname, firstname in alot of cases.

Otto von Bismark... DEFAULTSORT:Bismark, Otto   persondata |name=von Bismark, Otto.
Francisco da Costa Gomes... DEFAULTSORT:Gomez, Francisco   persondata |name=da Costa Gomes, Francisco.

Persondata name value contains names with ligatures, accents and other characters. Sort value is only to be the standard 26-letter English alphabet plus ".'.

Two people, one named José Márquez, the other Jose Marquez. If standard 26-letter alphabet is not used, the two names will be sorted in different spots.

DEFAULTSORT values DO FOLLOW IFLA guidelines. See en:WP:NAMESORT for rules. There are two exceptions. WikiProject Iceland has said to follow western sort order for DEFAULTSORT. WikiProject Brazil and WikiProject Football has said Brazilian footballers have defaultsort set to their nickname.

I have been the maintainer of DEFAULTSORT on enwiki for several years now. If you have questions, I would be the one to ask. Bgwhite (talk) 01:11, 28 October 2014 (UTC)

Yes, Persondata often contains wrong name sorting, but it does try to do name sorting - otherwise, why should the sort order in "name" be "supposed to be surname, firstname" at all? That's a way of sorting, too. I'm not that familiar with English Persondata, more with German Personendaten. Maybe there are more errors in the English variant. "von Bismarck, Otto" is wrong, it should be "Bismarck, Otto von", of course. - That said, if it turns out that the sort order in Persondata is wrong too often, maybe it would be better for Wikidata to extract it from DEFAULTSORT instead of Persondata. - There may be conflicting results when extracting from different Wikipedia language versions. For example, German Wikipedia follows the IFLA guidelines for sorting Icelandic names in DEFAULTSORT resp. (in German) SORTIERUNG (so, first name first). Gestumblindi (talk) 14:37, 28 October 2014 (UTC)

Pictogram voting comment.svg Comment as a librarian too, I can only agree to the need for a sorting value... at least for Person's names...

but I see problems, even between latin-language names...
  • the sorting habits are not the same in all countries, even in countries using the same language ; therefore, different sorting values should be made for different languages...
  • and this will be even more complicated for russian/chinese/etc. languages... Translitteration makes it very difficult to sort names... just have a look at Tchekov's name :S - and this is for a "modern" person... imagine for medieval names which could be written differently by the same person :/ - and of course, it works backwards, for our "simple" latin names, when translitterated in... just how many non-latin languages are there in wikidata ? --Hsarrazin (talk) 15:49, 28 October 2014 (UTC)
how could this be solved in wikidata... ? probably, it would be best to have each part of the name in a separate property, and then let each project assemble them to have a sortkey...
Sounds reasonable (though a bit complicated). A sort key may also be valuable for other names than names of persons - e.g. work titles - you don't want to sort all book titles beginning with "The ..." under T, e.g. English Wikipedia has DEFAULTSORT:Shining, The. Gestumblindi (talk) 20:27, 31 October 2014 (UTC)
of course not… :D — pardon me for laughing, but that is exactly what the library-catalog at my job does… :(
for titles, if you look at wikisource fr for example… the text pages are named with the correct title, and, without adding manually a DEFAULTSORT, except in very rare cases, we have a "Classement" module, automatically applied through Title or Proofreadpage header template, so that the texts are sorted according to French rules… I don't think the same rules apply in all languages… but a similar system could perhaps be set for every language :) --Hsarrazin (talk) 01:42, 1 November 2014 (UTC)
Symbol support vote.svg Support but it's important we indicate which system applies - names in Irish (Gaelic) are sorted by different rules (you ignore the Ó or Mac prefix so Ó Rourke and Mac Raeman are sorted together). Filceolaire (talk) 20:49, 31 October 2014 (UTC)
Actually no. You do not ignore Ó or Mac per University College, Dublin and National Library of Ireland. However, I've seen both systems used. But you do hit the most important thing... indicate which system applies. If supported, there should be a group who writes out the rules. Sounds like Hsarrazin and Gestumblindi should be in the group. Sounds like German and English Wikipedia's base things from IFLA guidelines, so that is probably the best starting point. I personally favour a fight to the death. :) Bgwhite (talk) 00:01, 2 November 2014 (UTC)
  • Reject as proposed. This needs a multilingual field as the sortkey will differ by language. --Izno (talk) 07:52, 21 November 2014 (UTC)
It depends. Libraries try to apply a standard that is on the one hand language-specific, on the other hand universal, such as in the already mentioned Names of Persons. Persons are entered according to the custom in the respective person's language, notwithstanding the language of the library's location. So, a library following "Names of Persons" will sort Spanish persons according to Spanish convention, and Icelandic persons according to Iceland convention, even if it's a library in Switzerland or in Poland. This would be a possible approach here IMHO. So we wouldn't need a "Spanish sorting" and a "Polish sorting" for the same person, but just one, the one according to the person's language. Gestumblindi (talk) 21:58, 25 November 2014 (UTC)
The problem with that approach is that isn't how it's done on any particular wiki--each of which will and do have different sorting conventions. --Izno (talk) 00:12, 27 November 2014 (UTC)
Symbol support vote.svg Support but using DEFAULTSORT as the source. I am speaking as someone who has used the metadata provided by Persondata. I gave up using the name parameter - it was just too random. Even using the name parameter to display the persons name was impossible! My final solution was to display the Wiki page name and use DEFAULTSORT for ordering. Periglio (talk) 02:03, 18 January 2015 (UTC)

Symbol support vote.svg Support But I suggest to link it to some language rules. As mentioned above, there are different rules for different languages, so we need a name of type monolinugal (original name as a person would describe itself in its mother tongue) and a set of rules for a defined group of some languages and may be some other sets of rules for some other languages. We need this property if we want to replace the templates by properties of Wikidata.--Giftzwerg 88 (talk) 00:39, 16 February 2015 (UTC)

language, except for works or persons[edit]

   In progress
Description language of item. Use more specific properties language of work (P407) or original language of work (P364) for works and native language (P103) or languages spoken or published (P1412) for persons.
Data type Item
Domain any item that has or uses a language except works or persons, like names, words, phrases, proverbs.
Allowed values items for languages
Example item and value

Jean (Q4160311), female given name → English (Q1860)
Jean (Q7521081), male given name → French (Q150)
Robot and gadget jobs no persons and no works of any kind allowed.
  • Pictogram voting comment.svg Comment P:P364 used to have the label "language". To match more closely its description, it's now labelled "language of the original work". This leaves a gap for cases like the above. --- Jura 04:52, 12 December 2014 (UTC)
  • Symbol support vote.svg Support --- Jura 04:52, 12 December 2014 (UTC)
  • Symbol support vote.svg SupportPictogram voting comment.svg Comment One day we will have also wictionary linked, so every word must have a language. Not only names, but also radio/tv stations broadcast in languages. However names are a bad example, because names tend to move between languages, sometimes unchanged over centuries and sometimes more or less modified.--Giftzwerg 88 (talk) 05:14, 12 December 2014 (UTC)
Pictogram voting comment.svg Comment I changed the domain to "any". --- Jura 05:16, 12 December 2014 (UTC)

distribution map[edit]

   In progress
Description distribution of item on the mapped area. For taxons use range map image (P181).
Data type Item
Domain names
Allowed values distribution maps
Example item and value Roberts (Q1646493) => File:Roberts.png
  • Symbol support vote.svg Support. An alternative solution could be to change the label/description of P181. --- Jura 04:52, 12 December 2014 (UTC)
  • Symbol oppose vote.svg Oppose - needed, but re-label range map image (P181). Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 11:32, 12 December 2014 (UTC)
  • Symbol support vote.svg Support, name distribution maps shows concentration, but range map image (P181) shows border only. Users who are interest in biology usually are not interest in human history. It is better to separate these entities to different properties. Also it is not simple to create single descriptive label for these properties. — Ivan A. Krestinin (talk) 05:04, 13 December 2014 (UTC)
  • Symbol support vote.svg Support. Per Ivan; distribution maps and range maps are qualitatively different. Note that biology often has distribution maps and history often has range maps, so this is not a matter of history vs. biology. Compare File:Roberts.png (distribution map) and File:Modern_Greek_dialects_en.svg (range map). And distribution maps can be used for taxons; see e.g. Andy, what do you think? Emw (talk) 15:35, 27 December 2014 (UTC)

award shared with[edit]

   Done: P1706
award shared with
qualifier to specify the person or group that the award is shared with
Description qualifier to specify the person or group that the award is shared with
Data type Item
Domain any item that's an instance of something, like people, organizations, works... (not abstract concepts)
Allowed values any item that's an instance of something
Example item and value

For Hendrik Lorentz (Q41688), who received the Nobel Prize in Physics (Q38104) in 1902, this award would be qualified award shared with => Pieter Zeeman (Q79000)
Helene Dubreuil (Q3144755) award received (P166) Academy Awards (Q19020) award shared with=> Anne Seibel (Q964305)

Friedrich Bergius (Q76614) award received (P166) Nobel Prize in Chemistry (Q44585) award shared with=> Carl Bosch (Q76606)
Proposed by Sweet kate (talk)

For when a single award is shared by two or more people/entities/etc. This is important data to include in award listings. Sweet kate (talk) 05:12, 18 December 2014 (UTC)

Symbol support vote.svg Support. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 13:03, 20 December 2014 (UTC)
A more general property is needed like for marriage. We need something like "shared with" only. Snipre (talk) 11:51, 23 December 2014 (UTC)
@Snipre:, what other properties do you see something like "shared with" qualifying? Sweet kate (talk) 20:51, 23 December 2014 (UTC)
Sweet kate I forgot we have the porperty "spouse". Snipre (talk) 21:30, 1 January 2015 (UTC)
Symbol oppose vote.svg Oppose. If an award like Nobel-Price is shared by two or more people, just give each of them the award. Both have the same honour. The only thing that is shared, is the money.--Giftzwerg 88 (talk) 20:11, 23 December 2014 (UTC)
Disagree that the only thing shared is the money. Often awards are given to a team, whether that's a songwriting collaboration, a scientific collaboration, or similar. Think of something like the Grammy Award for Song of the Year (Q1027904) — in 1986 Michael Jackson and Lionel Richie won for "We Are the World." They share the honor, but they also share the one, singular award. It is incomplete data if it is not indicated that it was shared. Neither one person could or should take singular credit without the other. Sweet kate (talk) 20:51, 23 December 2014 (UTC)
Symbol support vote.svg Support, I've been wanting this for quite some time as I've been doing a lot of work with awards lately, and actually came here to propose this property myself. This would be used as a qualifier for award received (P166). User:Giftzwerg 88's objection doesn't really make any sense to me; for example, in the case of latest Nobel Prize, there were specific reasons why the prize was shared between Malala Yousafzai (Q32732) and Kailash Satyarthi (Q3442375), and the fact that they shared it is relevant to Wikidata. Jon Harald Søby (talk) 01:03, 13 January 2015 (UTC)

✓ Created, since there were no other objections in more than a week. @Sweet kate:, @Pigsonthewing:. Jon Harald Søby (talk) 10:17, 21 January 2015 (UTC)

Pictogram voting comment.svg Comment we need a more precise description of the domain and allowed values. Can someone give an exmple how it´s used on a work?--Giftzwerg 88 (talk) 11:58, 21 January 2015 (UTC)
@Giftzwerg 88: Sorry, I didn't see this reply until now. You can see plenty of examples on Special:WhatLinksHere/Property:P1706. For example, Malala Yousafzai (Q32732) shared Nobel Peace Prize (Q35637) with Kailash Satyarthi (Q3442375). Jon Harald Søby (talk) 18:19, 18 February 2015 (UTC)
Pictogram voting comment.svg Comment not having noticed this proposal before I proposed Wikidata:Property proposal/Person#together with more general to use also for positions (rulers, kings, executives..) which are only granted together with somebody else, kind of inverse of (P1696) of applies to part (P518); example Q61277Frederick III, Elector of Saxony (Q77233) position held (P39) prince-elector (Q22722) of (P642) Electorate of Saxony (Q156199) together with =>John, Elector of Saxony (Q61277). I would propose to keep this property more general together with so that we do not need two similar properties.--Oursana (talk) 13:31, 21 January 2015 (UTC)
@Oursana: Like with Giftzwerg above, didn't see this reply until now... Yeah, I think this may make sense. After all, "award shared with" is a hyponym of "shared with"/"together with", so if we change this property to "together with", it could be used in those cases as well. Jon Harald Søby (talk) 18:19, 18 February 2015 (UTC)

property used in this template[edit]

   In progress
Description list properties used in a given template
Data type Property
Domain templates
Allowed values any property
Source templates at Wikipedia
Example item and value Template:Infobox person (Q6249834): date of birth (P569), date of death (P570), etc.

Illustrate usage of properties --- Jura 05:45, 19 December 2014 (UTC)

Jura, thanks for the clarification. I now see this proposal makes sense to have here. Emw (talk) 15:39, 27 December 2014 (UTC)


   In progress
Description For use in a statement on a property, whose values are an ordering key
Represents Q10513350 (Q10513350)
Data type boolean-invalid datatype (not in Module:i18n/datatype)
Domain Properties
Allowed values true, false
Example item and value point in time (P585) → true
Robot and gadget jobs Automatic ordering of orderable claims and claims with orderable qualifiers upon insertion
Proposed by Petr Matas

See WD:PC#UI - order of events in significant events. Petr Matas 11:31, 22 December 2014 (UTC)

ordering key[edit]

   In progress
Description Indicates, which qualifier should be used as a preferred ordering key for multiple statements with this property
Represents Q10513350 (Q10513350)
Data type Property
Domain All properties
Allowed values All properties
Example item and value significant event (P793)point in time (P585)
Robot and gadget jobs Automatic ordering of claims with orderable qualifiers upon insertion
Proposed by Petr Matas

See WD:PC#UI - order of events in significant events. Petr Matas 09:33, 23 December 2014 (UTC)

I don't really get what it is supposed to do. If we just want to sort them by chronological order, that seems to be the same for all properties: that is point in time (P585) / start time (P580) with fallback to end time (P582)). --Zolo (talk) 09:00, 21 January 2015 (UTC)
Symbol oppose vote.svg Oppose per Zolo. Filceolaire (talk) 22:51, 18 February 2015 (UTC)

candidate of[edit]

   In progress
Description Reverse of candidate (P726).
Data type Item
Domain person, party
Allowed values election
Example item and value Rajmohan Gandhi (Q734521)=>Indian general election of 2014 (Q3587169)
Robot and gadget jobs Yes
Proposed by GZWDer (talk)

As candidate (P726) is currently abused we must spilt the usage to another property. So I will create it in 10 days if there are no oppose. GZWDer (talk) 09:46, 8 January 2015 (UTC)

  • Symbol oppose vote.svg Oppose. candidate (P726) should have its usage cleaned up, preferably by bot. There is no need to duplicate candidate data. --Yair rand (talk) 17:00, 22 February 2015 (UTC)

different from[edit]

   In progress
Description This item is different from that one, and they are often confused. In contrast to said to be the same as (P460) that expresses uncertainty "... the statement is disputed", different from expresses a strong negation
Data type Item
Template parameter not that I know of
Domain any item
Allowed values any item
Source owl:differentFrom (OWL) and gvp:aat2100_distinguished_from (Getty's LOD)
Example item and value Philip A. Goodwin (Q7183094) (a politician) is different from Philip R. Goodwin (Q7184251) (a painter). Many pairs in P245 (ULAN) Unique value are examples of "different from" (and the rest should be merged).
Robot and gadget jobs

  • Check that the two items do not have the same authority identifier (AAT, TGN, ULAN, VIAF, GND, etc). The "Unique value constraint" on these identifiers already checks this (eg see P245 (ULAN) Unique value), but together with an explicit claim "different from", we can split that section into "Delete authority identifier from one of the items" vs "Merge the two items".
  • Check that the two items are not subject of the same statement: if Q1 different from Q2, there should be no statements Q3 P1 Q1 and Q3 P1 Q2. Of course, that's a warning not a certain mistake.
Proposed by Vladimir Alexiev (talk)

Automated jobs (and less often people) make mistakes and identify two things that are in fact different. It's useful to document the difference, so others won't repeat the same mistake. It can also be used to improve authority identifier management (see the first "robot job" above).

Important: Obviously it's crucial to add a reference to such a statement, lest endless discussion ensues. But what to add? I found that Philip A. Goodwin (Q7183094) is different from Philip R. Goodwin (Q7184251) by inspecting their properties (different years, different professions), and ULAN for the latter. Ideally, I'd like to add a comment to that effect and my user name: but I can't do that in a reference. --Vladimir Alexiev (talk) 21:52, 11 January 2015 (UTC)

  • Symbol support vote.svg Support --- Jura 16:17, 7 February 2015 (UTC)
  • I think this should be placed in talk pages instead of item, as clients don't need it.--GZWDer (talk) 06:14, 16 February 2015 (UTC)
         select * {?x gvp:aat2100_distinguished_from ?y}
  • Symbol support vote.svg Support agree with Vladimir ~~~~

number of entries/articles[edit]

   In progress
Description number of entries/articles of encyclopedia/database
Data type Number
Domain encyclopedia/database
Allowed values number>0
Example item and value Wikidata (Q2013) => 13,537,779
Proposed by GZWDer (talk)

GZWDer (talk) 06:10, 21 January 2015 (UTC)

  • Symbol support vote.svg Support --- Jura 12:29, 22 February 2015 (UTC)

number of users/contributors[edit]

   In progress
Description number of users/contributors of website or book edition (if there're many)
Data type Number
Domain website/edition
Allowed values number>0
Example item and value Wikidata (Q2013) => 1,721,158
Proposed by GZWDer (talk)

GZWDer (talk) 10:06, 21 January 2015 (UTC)

Symbol support vote.svg Support looks good, especially for cases where listing all contributors is not practical (i.e. for Wikidata) Ajraddatz (talk) 22:03, 18 February 2015 (UTC)
  • Symbol support vote.svg Support --- Jura 12:29, 22 February 2015 (UTC)
  • Pictogram voting question.svg Question Would not it be better to l''number of authors ? contributor is Wikipedia or free software centric, why not generalise this a little bit ? @GZWDer, Jura1, Ajraddatz: TomT0m (talk) 16:21, 23 February 2015 (UTC)
    • "author" is more specific than "user". --- Jura 18:28, 23 February 2015 (UTC)

EAGLE id (it) – (Please translate this into English.)[edit]

   In progress
Description identificatore di un concetto epigrafico nei vocabolari controllati del progetto EAGLE (Europeana network of Ancient Greek and Latin Epigraphy) (it) – (Please translate this into English.)
Represents Rostrum (Q13581079)
Data type String
Template parameter inserisci qui il parametro di un infobox di Wikipedia, se esiste. Ad esempio: "Abitanti" in it:Template:Divisione amministrativa
Domain materials, types of inscriptions, Object type (support of inscribed object), Execution technique (writing technique of the inscriptions), decoration types
Source Riferimento esterno
Example item and value aggiungerei a item come questo Rostrum (Q13581079) -> 1961 un url di un tesauro specifico per l'epigrafia .... che rappresenta lo stesso concetto.
Robot and gadget jobs sarebbe fantastico se un bot potesse fare questo lavoro, ma sospetto sia meglio farlo a mano almeno per alcuni casi ambigui.
Proposed by Pietromarialiuzzo (talk)

Motivazione Pietromarialiuzzo (talk) 15:53, 26 January 2015 (UTC) Vorrei rendere i vocabolari specifici dell'epigrafia creati dal progetto EAGLE accessibili a tutti collegandoli a wikidata perché altri progetti ne possano usufruire liberamente e per contribuire con questo lavoro alla missione di wikidata. Seguo un consiglio datomi a Berlino dal team di Wikidata a Settembre dello scorso anno, sebbene con ampio ritardo... spero di aver compilato il modulo di richiesta bene, ci sono molte cose che non capisco.


  • translate to English
  • Move to WD:PP/AUTH
  • "Represents Rostrum" is wrong. Make an item for "EAGLE repository" and quote in "subject item" above

--Vladimir Alexiev (talk) 15:25, 23 February 2015 (UTC)

format (regex)[edit]

   In progress
Description Format for this specific property or item, defined by a regex
Data type String
Template parameter Template:Constraint:Format, even Template:Property documentation
Domain properties, possibly other items
Allowed values regular expressions
Example item and value Property:P1293: "\d{1,4}"
Market Identifier Code (Q6770697) = "\p{4}"

Could be used to hold regex currently defined in one of the above templates.

Similar to "pattern" included in the list by @Ivan A. Krestinin: at Property proposal/Property metadata#Originally proposed_3. --- Jura 12:56, 30 January 2015 (UTC)

Symbol support vote.svg Support but I believe this property should be proposed in this section: Wikidata:Property proposal/Property metadata. Tpt (talk) 09:09, 31 January 2015 (UTC)
Single property has a little sense. We need to discuss all required properties in complex. Please move your efforts to complex discussion. — Ivan A. Krestinin (talk) 10:01, 31 January 2015 (UTC)
Pictogram voting comment.svg Comment I think this property can be helpful on items as well properties themselves. This is why I proposed it here. As it has merits of its own, I'd rather not drown it in a complex discussion in an even more complex proposal page. --- Jura 10:28, 31 January 2015 (UTC)
{@Jura1: give an example how can be used for item --Vladimir Alexiev (talk) 15:27, 23 February 2015 (UTC)
Sure, I added one above. --- Jura 18:26, 23 February 2015 (UTC)

source language of given name[edit]

   In progress
Description language this spelling of a first name or given name comes from. Of use for Wikidata:WikiProject Names.
Data type Item
Domain given name items
Allowed values items for languages
Example item and value

Ash Crow
Harmonia Amanda
Pictogram voting comment.svg Notified participants of Wikiproject Names

  • Pictogram voting comment.svg Comment This is to replace P:P364 on items for given names. P364 used to have the label "language", but is now labelled "language of the original work", so it can't be used anymore and we need to find a replacement. The more general proposal above (#language.2C_except_for_works_or_persons) didn't seem to fly. --- Jura 11:36, 7 February 2015 (UTC)
  • Symbol support vote.svg Support per proposal. --- Jura 11:36, 7 February 2015 (UTC)
  • Pictogram voting question.svg Question @Jura1: What's wrong with the generic "language" properties in this case ? Does not seem right to create one property for name, one other for whatever else, etc. A gender statement or/and make a statement like seems useful, however
    TomT0m (talk) 16:39, 23 February 2015 (UTC)
    • I don't know. It's just that I need some sort of a property for these items. Given the new (English) label of P:P364, I can't use that anymore. --- Jura 18:10, 23 February 2015 (UTC)
    • BTW, I improved the presentation of the example above. --- Jura 17:43, 24 February 2015 (UTC)

property used by this WikiProject[edit]

   In progress
Description list properties used by a given WikiProject
Data type Property
Domain WikiProjects
Allowed values any property
Source lists on WikiProjects
Example item and value WikiProject France (Q10816832): INSEE municipality code (P374), etc.
  • To illustrate usage of properties. --- Jura 11:48, 16 February 2015 (UTC)


   In progress
Description Proportional ratio of a linear dimension of a model to the same feature of the original
Represents scale (Q10858537)
Data type number?-invalid datatype (not in Module:i18n/datatype)
Template parameter "ratio" in w:en:Infobox model rail scale, possibly others
Domain model railway scales, scale models, statues/sculptures, toys, prototypes, relplicas, anything else produced to a scale ratio. Map scales could either be included or as a separate property, I don't know which is preferable.
Allowed values 1:n (for smaller than lifesize), 1:1 (for lifesize), n:1 (for larger than lifesize). n is a decimal number
Source external reference, Wikipedia list article (either infobox or source)
Example item and value Scalextric (Q1683328) 1:32, HO scale (Q911411) 1:87.1
Format and edit filter validation ?
Robot and gadget jobs Not aware of any, but bots could collect data from infoboxes
Proposed by Thryduulf (talk: local

This is a key property for model railway scales, but I actually came across it trying to improve Scalextric (Q1683328). Not sure whether this should just be for 3 dimensional objects or whether map scales should included. If map scales aren't included that should be a separate new property. Thryduulf (talk: local | en.wp | en.wikt) 12:55, 21 February 2015 (UTC) Symbol support vote.svg Support in principle. This should either be a string ("1:32"), or a number n, where in the first example n=32. For larger-than-lifesize, the number n would be < 1. Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 13:33, 21 February 2015 (UTC)

  • Symbol support vote.svg Support with number datatype for "1:n". --- Jura 14:53, 21 February 2015 (UTC)