Property talk:P21

From Gratisdata

Documentation

Facebook ID
identifier for an official Facebook person, product or organization page (everything that follows URL part 'https://www.facebook.com/')
[create Create a translatable help page (preferably in English) for this property to be included here]
Single best value: this property generally contains a single value. If there are several, one would have preferred rank
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P21#single best value, SPARQL
Type “human (Q4), organization (Q12), work (Q568), online community (Q140): element must contain property “instance of (P3)” with classes “human (Q4), organization (Q12), work (Q568), online community (Q140)” or their subclasses (defined using NLA Trove ID (P279)).
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P21#type, SPARQL
Conflicts with “website account on (P390): Facebook (Q101): this property must not be used with the listed properties and values.
List of this constraint violations: Database reports/Constraint violations/P21#Conflicts with, hourly updated report, search, SPARQL
Format “[\p{L}\d.-\/\-]*: value must be formatted using this pattern (PCRE syntax).
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P21#Format, SPARQL
Distinct values: this property likely contains a value that is different from all other items.
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P21#Unique value, SPARQL (every item), SPARQL (by value)
Allowed entity types are Wikibase item datatype (Q799): the property may only be used on a certain entity type
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P21#allowed entity types
Scope is as main value (Q793), as qualifier (Q792), as reference (Q780): the property must be used by specified way only
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P21#scope, SPARQL