Property talk:P221

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ISO 639-6 code
4-letter identifier for language variants per ISO 639-6, standard between 2009-2014

Description	ISO 639-6 code for a language - ISO 639-6 (Q153666)
Applicable "stated in" value	ISO 639-6 (Q153666)
Data type	External identifier
Template parameter	|iso6= in w:en:Template:Infobox language
Domain	According to this template: languoid (Q17376908) According to statements in the property: languoid (Q17376908) When possible, data should only be stored as statements
Allowed values	[a-z]{4}
Example	Cantonese (Q9186) → yyef guzh Old English (Q42365) → ango
Tracking: usage	Category:Pages using Wikidata property P221 (Q26250094)
See also	ISO 639-1 code (P218), ISO 639-2 code (P219), ISO 639-3 code (P220), ISO 639-5 code (P1798)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P221 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 163 Main statement 160 98.2% of uses Qualifier 3 1.8% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Type “languoid (Q17376908)”: item must contain property “instance of (P31)” with classes “languoid (Q17376908)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P221#Type Q17376908, hourly updated report, SPARQL

Format “[a-z]{4}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P221#Format, hourly updated report, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P221#Unique value, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P221#Single value, SPARQL

Qualifiers “start time (P580), reason for deprecated rank (P2241), reason for preferred rank (P7452), latest start date (P8555), earliest date (P1319), earliest end date (P8554), latest date (P1326)”: this property should be used only with the listed qualifiers. (Help)

List of violations of this constraint: Database reports/Constraint violations/P221#allowed qualifiers, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P221#Entity types

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P221#Scope, SPARQL

This property is being used by: fy:Berjocht:Universele ynfoboks taalfamylje ar:قالب:صندوق معلومات لغة hy:Կաղապար:Տեղեկաքարտ Լեզու, hy:Կաղապար:Տեղեկաքարտ Լեզու արւմտ. ang:Bysen:Cyþþubox sprǣc ca:Plantilla:Infotaula de llengua, ca:Plantilla:Infotaula llengua vec:Modeło:Infobox de Łéngua ga:Teimpléad:WD Bosca Sonraí Teanga Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

format constraint

added a format constraint with pattern [a-z][a-z][a-z][a-z]? --Akkakk 23:19, 24 July 2013 (UTC)

constraint report relating to Wikimedia disambiguation page (Q4167410)

If instance of (P31) is a Wikimedia disambiguation page (Q4167410) the presence of ISO 639-6 code (P221) is prohibited.

see: Wikimedia disambiguation page (Q4167410) with ISO 639-6 (P221) gangLeri לערי ריינהארט (talk) 15:18, 19 May 2014 (UTC)

Where to check these codes?

The Geolang does no longer serve its query service. --117.15.55.42 08:51, 15 March 2019 (UTC)