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.
Result for Bolesław IV the Curly (Q53442)
: 2, : 8, : 1460, : 100
| Status | Property | Message | Constraint |
|---|---|---|---|
| country of citizenship | The entities Bolesław IV the Curly and Poland should be contemporary to be linked through country of citizenship, but the latest end value of Bolesław IV the Curly is 5 January 1173 and the earliest start value of Poland is 11 November 1918Gregorian. | contemporary constraint | |
| instance of | The 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 | |
| place of death | Statements for place of death should have at least one reference. | citation-needed constraint | |
| spouse | Statements for spouse should have at least one reference. | citation-needed constraint | |
| position held | This position held statement is missing a qualifier start time. | required qualifier constraint | |
| date of birth | This property should contain a single “best” value. Of the current multiple values, one should be marked with “preferred” rank. | single-best-value constraint | |
| date of birth | This property should contain a single “best” value. Of the current multiple values, one should be marked with “preferred” rank. | single-best-value constraint | |
| date of birth | This property should contain a single “best” value. Of the current multiple values, one should be marked with “preferred” rank. | single-best-value constraint | |
| date of death | This property should contain a single “best” value. Of the current multiple values, one should be marked with “preferred” rank. | single-best-value constraint | |
| date of death | This property should contain a single “best” value. Of the current multiple values, one should be marked with “preferred” rank. | single-best-value constraint |