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 forest (Q4421)

: 2, : 18, : 1938, : 33, : 67

StatusPropertyMessageConstraint
exact match/^(?:^(?!https?:\\/\\/schema\.gov\.it\\/lodview\\/controlled-vocabulary\\/).*)$/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
Art & Architecture Thesaurus IDThis property should only have a single value with the same subject named as qualifier.single-value constraint
Art & Architecture Thesaurus IDThis property should only have a single value with the same subject named as qualifier.single-value constraint
Art & Architecture Thesaurus IDThis property should only have a single value with the same subject named as qualifier.single-value constraint
Library of Congress authority IDThis property's value should not be present on any other item, but is also present on forestry.distinct-values constraint
studied inValues of studied in statements should be instances or subclasses of one of the following classes (or of one of their subclasses), but forestry engineer currently isn't: value-type constraint
Quora topic IDThis property's value should not be present on any other item, but is also present on Forests.distinct-values constraint
JSTOR topic IDThis property is generally expected to contain only a single value.single-value constraint
JSTOR topic IDThis property is generally expected to contain only a single value.single-value constraint
subredditThis subreddit statement is missing a qualifier language of work or name.required qualifier constraint
model itemThis model item statement is missing a qualifier applies to use with property.required qualifier constraint
model itemThis model item statement is missing a qualifier applies to use with property.required qualifier constraint
model itemThis model item statement is missing a qualifier applies to use with property.required qualifier constraint
Klexikon article IDThis property is generally expected to contain only a single value.single-value constraint
Klexikon article IDThis property is generally expected to contain only a single value.single-value constraint
WordNet 3.1 Synset IDThis property's value should not be present on any other item, but is also present on woodland.distinct-values constraint
topic's main categoryThis property should contain a single “best” value with the same applies to part qualifier. Of the current multiple values, one should be marked with “preferred” rank.single-best-value constraint
topic's main categoryThis property should contain a single “best” value with the same applies to part qualifier. Of the current multiple values, one should be marked with “preferred” rank.single-best-value constraint
National Library of Spain IDThis property's value should not be present on any other item, but is also present on silviculture.distinct-values constraint