Property talk:P2989

Documentation

• Start a query
• Current uses
• Statistics by class
• List of values
• List of qualifiers
• Count

has grammatical case
case used in this language

Represents	case (Q128234)
Data type	Item
Domain	According to this template: languoid (Q17376908) According to statements in the property: languoid (Q17376908) When possible, data should only be stored as statements
Example	German (Q188) → nominative case (Q131105) genitive case (Q146233) dative case (Q145599) accusative case (Q146078) Russian (Q7737) → nominative case (Q131105) genitive case (Q146233) dative case (Q145599) accusative case (Q146078) instrumental case (Q192997) prepositional case (Q2114906) locative case (Q202142) partitive case (Q857325) vocative case (Q185077)
See also	has tense (P3103), has grammatical mood (P3161), has grammatical gender (P5109), has grammatical person (P5110), has conjugation class (P5206), requires grammatical feature (P5713)
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 By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers 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/P2989 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 728 Main statement 714 98.1% of uses Qualifier 14 1.9% of uses
Search for values

[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)

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/P2989#Type Q17376908, SPARQL

Value type “case (Q128234)”: 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 case (Q128234) (or a subclass thereof). (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/P2989#Value type Q128234, 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/P2989#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/P2989#Scope, SPARQL

This property is being used by: diq:Şablon:Infobox language, diq:Şablon:Zıwan, diq:Şablon:Zıwani zh-yue:Template:維基數據語言明細 yue:Template:維基數據語言明細 Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Qualifier

@Tobias1984, ChristianKl, Jura1, Thryduulf: What do you think about series ordinal (P1545) as qualifier for this property to indicate that the common order of the cases differs (accusative case (Q146078) is in German (Q188) the 4th case and in Romanian (Q7913) the 2nd)? -- T.seppelt (talk) 09:49, 23 July 2016 (UTC)

As long as there is a sourceable definitive order for the given language then I have no issue with that. Thryduulf (talk) 10:50, 23 July 2016 (UTC)

@T.seppelt: I hadn't even thought about that, but that seems like a good idea. --Tobias1984 (talk) 11:06, 24 July 2016 (UTC)

I had a discussion on the German Wikipedia ([1]) about this. At least for German its apparently pretty hard to define a persistent order. -- T.seppelt (talk) 08:55, 26 July 2016 (UTC)

describing a complete set without disrupting the overall picture

How do we best describe the full set for properties like these? In Swedish, this is very simple, there is only 2 cases. But to describe grammatical gender in Swedish is much harder. Based in which schoolbooks you use, there are 2, 3 or 4 genders in Swedish. If I list all genders based on all models, it could be interpreted as if there are 5 genders. But no model describe a set of 5 genders. -- Innocent bystander (talk) 16:05, 26 July 2016 (UTC)

@Innocent bystander: That is a general problem with Wikidata. You can't combine multiple statements and attribute them to one source or a certain model. Probably the only way to do it now is to use qualifiers, which need a statement for "this gender is used in the swedish-4-gender system". And create items for swedish-2-gender-system, swedish-3-gender-system,... --Tobias1984 (talk) 12:13, 29 July 2016 (UTC)