Property talk:P5444

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model year
year a specific model of a product (such as a car) was released, likely different from the actual year of production
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  Single value: this property generally contains a single value. (Help)
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P5444#Single value, SPARQL, SPARQL (new)
  Value type “year (Q577), model year (Q1850364): 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 year (Q577), model year (Q1850364) (or a subclass thereof). (Help)
Exceptions are possible as rare values may exist.
List of this constraint violations: Database reports/Constraint violations/P5444#Value type Q577, Q1850364, SPARQL, SPARQL (new)
  Model year ±1 ≥ year of first commercialization of car model
correct date of commercialization (P5204) on item for car model or define exception(s) (Help)
Violations query: SELECT ?item ?my ?model ?commdate { ?item wdt:P5444 / wdt:P585 ?mydate . BIND(YEAR(?mydate) as ?my) ?item wdt:P279 ?model . ?model wdt:P31 wd:Q3231690 . ?model wdt:P5204 ?commdate . FILTER(YEAR(?commdate)-1 >= ?my) } LIMIT 200
List of this constraint violations: Database reports/Complex constraint violations/P5444#Model year ±1 ≥ year of first commercialization of car model
  Model year ≤ discontinued date of car model
correct discontinued date (P2669) on item for car model or define exception(s) (Help)
Violations query: SELECT ?item ?my ?model ?discont { ?item wdt:P5444 / wdt:P585 ?mydate . BIND(YEAR(?mydate) as ?my) ?item wdt:P279 ?model . ?model wdt:P31 wd:Q3231690 . ?model wdt:P2669 ?discont . FILTER(YEAR(?discont) < ?my) } LIMIT 200
List of this constraint violations: Database reports/Complex constraint violations/P5444#Model year ≤ discontinued date of car model
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