Constraint report

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This special page performs constraint checks on any entity you want. The entities are fetched from the live system, so every constraint violation you fix there will be instantly removed from this list.

The constraints are parsed from statements on properties each time those statements are edited, usually within a few minutes.

Check constraints for entity

Result for Tokyo Metro (Q682894)

: 3, : 5, : 1648, : 145, : 4

StatusPropertyMessageConstraint
Facebook username/^(?:(?!\w+\.php\b|people\b)[\p{L}\d.\\/-]*)$/u is not a valid regular expression.format constraint
patronageThe parameter "property" must only have a single value.item-requires-statement constraint
publication dateThe parameter "item of property constraint" must be one of the following:allowed-entity-types constraint
WorldCat Identities ID (superseded)An entity with WorldCat Identities ID (superseded) should also have a statement WorldCat Entities ID.item-requires-statement constraint
OSM Name Suggestion Index IDAn entity with OSM Name Suggestion Index ID should also have a statement ‎location information URL.item-requires-statement constraint
OSM Name Suggestion Index IDAn entity with OSM Name Suggestion Index ID should also have a statement operating area.item-requires-statement constraint
OSM Name Suggestion Index IDAn entity with OSM Name Suggestion Index ID should also have a statement operating area.item-requires-statement constraint
OSM Name Suggestion Index IDAn entity with OSM Name Suggestion Index ID should also have a statement ‎location information URL.item-requires-statement constraint
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