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 Yasovarman I (Q559810)

: 4, : 3, : 790, : 24

StatusPropertyMessageConstraint
posthumous nameThis posthumous name statement is missing a qualifier writing system.required qualifier constraint
country of citizenshipThe entities Yasovarman I and Cambodia should be contemporary to be linked through country of citizenship, but the latest end value of Yasovarman I is 910Gregorian and the earliest start value of Cambodia is 9 November 1953.contemporary constraint
instance ofThe property instance of should not be used in this location (as qualifier). The only valid location for this property is as main value.property scope constraint
instance ofThe property instance of should not be used in this location (as qualifier). The only valid location for this property is as main value.property scope constraint
cause of deathStatements for cause of death should have at least one reference.citation-needed constraint
date of birthStatements for date of birth should have at least one reference.citation-needed constraint
date of deathStatements for date of death should have at least one reference.citation-needed constraint