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 Friedrich Hebbel (Q57182)
: 1, : 1, : 1, : 3, : 3883, : 256, : 1
| Status | Property | Message | Constraint |
|---|---|---|---|
| RISM ID | /^(?:(people|institutions|sources)\\/[1-9]\d*)$/u is not a valid regular expression. | format constraint | |
| Swedish National Library Arken ID | This property's value should not be present on any other item, but is also present on Helena Henschen. | distinct-values constraint | |
| educated at | The entities Friedrich Hebbel and University of Hamburg should be contemporary to be linked through educated at, but the latest end value of Friedrich Hebbel is 13 December 1863Gregorian and the earliest start value of University of Hamburg is 1919. | contemporary constraint | |
| birth name | Statements for birth name should have at least one reference. | citation-needed constraint | |
| award received | Statements for award received should have at least one reference. | citation-needed constraint | |
| pseudonym | Statements for pseudonym should have at least one reference. | citation-needed constraint |