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 Alexz Johnson (Q239786)

: 3, : 4, : 6, : 1707, : 124, : 2

StatusPropertyMessageConstraint
Listal ID/^(?:(?:movie\\/|tv\/|place\\/|game\\/|music\\/|dvd\\/|book\\/|comic\\/|art\\/|toy\\/)?[a-zôäöüßéèúï\d_.'-]+)$/u is not a valid regular expression.format constraint
Facebook username/^(?:(?!\w+\.php\b|people\b)[\p{L}\d.\\/-]*)$/u is not a valid regular expression.format constraint
publication dateThe parameter "item of property constraint" must be one of the following:allowed-entity-types constraint
based on heuristicValues of based on heuristic statements should be instances or subclasses of algorithm or reasoning (or of a subclass of them), but record linkage currently isn't.value-type constraint
based on heuristicValues of based on heuristic statements should be instances or subclasses of algorithm or reasoning (or of a subclass of them), but record linkage currently isn't.value-type constraint
based on heuristicValues of based on heuristic statements should be instances or subclasses of algorithm or reasoning (or of a subclass of them), but record linkage currently isn't.value-type constraint
based on heuristicValues of based on heuristic statements should be instances or subclasses of algorithm or reasoning (or of a subclass of them), but record linkage currently isn't.value-type constraint
birth nameStatements for birth name should have at least one reference.citation-needed constraint
ČSFD person IDEntities with statements for ČSFD person ID should also have a label at least in Czech language.label in language constraint
ČSFD person IDEntities with statements for ČSFD person ID should also have a label at least in Slovak language.label in language constraint
pseudonymStatements for pseudonym should have at least one reference.citation-needed constraint
described at URLThis described at URL statement is missing a qualifier language of work or name.required qualifier constraint
described at URLThis described at URL statement is missing a qualifier language of work or name.required qualifier constraint