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 Henri Christophe (Q353458)

: 1, : 3, : 3, : 1444, : 56

StatusPropertyMessageConstraint
BlackPast.org ID/^(?:[a-z\-]+\\/[a-z0-9\-]+(\\/[a-z0-9\-]+)*)$/u is not a valid regular expression.format constraint
museum-digital person IDThis property should only have a single value with the same set of qualifiers for these properties: single-value constraint
museum-digital person IDThis property should only have a single value with the same set of qualifiers for these properties: single-value constraint
place of birthThe entities Henri Christophe and Grenada should be contemporary to be linked through place of birth, but the latest end value of Henri Christophe is 8 October 1820Gregorian and the earliest start value of Grenada is 1974.contemporary constraint
manner of deathStatements for manner of death should have at least one reference.citation-needed constraint
place of deathStatements for place of death should have at least one reference.citation-needed constraint
position heldThis position held statement is missing a qualifier start time.required qualifier constraint