Property talk:P23

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Type “human (Q4), organization (Q12), work (Q568): element must contain property “instance of (P3)” with classes “human (Q4), organization (Q12), work (Q568)” 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/P23#type, SPARQL
Conflicts with “website account on (P390): Instagram (Q2509): this property must not be used with the listed properties and values.
List of this constraint violations: Database reports/Constraint violations/P23#Conflicts with, hourly updated report, search, 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/P23#Unique value, SPARQL (every item), SPARQL (by value)
Item “instance of (P3): Items with this property should also have “instance of (P3)”.
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P23#Item, search, SPARQL
Format “(?!.*\.\.)(?!.*\.$)[^\W][\w.]{0,29}: 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/P23#Format, SPARQL
Allowed entity types are Wikibase item datatype (Q799), Wikibase MediaInfo (Q842): 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/P23#allowed entity types
Scope is as main value (Q793), as reference (Q780), as qualifier (Q792): 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/P23#scope, SPARQL
Format “.{2,100}|: value must be formatted using this pattern (PCRE syntax).
List of this constraint violations: Database reports/Constraint violations/P23#Format, hourly updated report, SPARQL