Property talk:P1647
Documentation
all resources related by this property are also related by that property
Description | all resources related by this property are also related that property. Implements rdfs:subPropertyOf. | ||||||||||||
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Data type | Property | ||||||||||||
Domain | According to this template:
Wikidata property (Q18616576) - Wikidata:Glossary#Property
According to statements in the property:
When possible, data should only be stored as statementsWikidata property (Q18616576) | ||||||||||||
Allowed values | Other Wikidata property (Q18616576) - Wikidata:Glossary#Property (note: this should be moved to the property statements) | ||||||||||||
Example | According to this template:
According to statements in the property:
When possible, data should only be stored as statementsparent taxon (P171) → subclass of (P279) country of citizenship (P27) → country (P17) | ||||||||||||
Lists |
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Proposal discussion | Proposal discussion | ||||||||||||
Current uses |
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Search for values |
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Type “Wikidata property (Q18616576)”: element must contain property “instance of (P31)” with classes “Wikidata property (Q18616576)” or their subclasses (defined using subclass of (P279)). (Help) List of this constraint violations: Database reports/Constraint violations/P1647#type, hourly updated report, SPARQL
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Value type “Wikidata property (Q18616576)”: This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value Wikidata property (Q18616576) (or a subclass thereof). (Help) List of this constraint violations: Database reports/Constraint violations/P1647#Value type, hourly updated report, SPARQL
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Property “Wikidata item of this property (P1629)” declared by target items of “subproperty of (P1647)”: If [item A] has this property with value [item B], [item B] is required to have property “Wikidata item of this property (P1629)”. (Help) Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P1647#Target required claim, SPARQL, SPARQL (by value) |
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Property “Wikidata property example (P1855)” declared by target items of “subproperty of (P1647)”: If [item A] has this property with value [item B], [item B] is required to have property “Wikidata property example (P1855)”. (Help) Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P1647#Target required claim, SPARQL, SPARQL (by value) |
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Conflicts with “subclass of (P279)”: this property must not be used with the listed properties and values. (Help) List of this constraint violations: Database reports/Constraint violations/P1647#Conflicts with, hourly updated report, search, SPARQL
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Scope is as main value (Q54828448): the property must be used by specified way only (Help) List of this constraint violations: Database reports/Constraint violations/P1647#scope, hourly updated report, SPARQL
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Allowed entity types are Wikibase property (Q29934218): the property may only be used on a certain entity type (Help) List of this constraint violations: Database reports/Constraint violations/P1647#allowed entity types, hourly updated report
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Item “property constraint (P2302)”: Items with this property should also have “property constraint (P2302)”. (Help) Exceptions are possible as rare values may exist. List of this constraint violations: Database reports/Constraint violations/P1647#Item, search, SPARQL |
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What is the reason for the P1629 constraint?[edit]
I don't understand this constraint:
Property "Wikidata item of this property (P1629)" declared by target items of “subproperty of (P1647)”: If [item A] has this property with value [item B], [item B] is required to have property “Wikidata item of this property (P1629)”.
That is, I understand what it does (I believe), but I don't understand the reason. NisJørgensen (talk) 14:03, 25 July 2019 (UTC)
incorrect claim in core of Wikidata ontology[edit]
I see the claim here that subproperty of (P1647) subproperty of (P1647) subclass of (P279).
Surely this is incorrect. But the real question is how such a core incorrect claim can have persisted since September 2019 without anyone noticing. Is there any way to protect the core items of the Wikidata ontology from bad changes? Is there nothing in Wikidata that would flag material changes to the core items of the Wikidata ontology?
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