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 Liverpool Hope University (Q1818020)
: 4, : 3, : 2, : 1941, : 177, : 2
| Status | Property | Message | Constraint |
|---|---|---|---|
| phone number | /^(?:(?:(?:(?:\+|00|011)[\.\\/\-\ \t]*([17]|2(?:[07]|[1-689]\d)|3(?:[0-4679]|[578]\d)|4(?:[013-9]|2\d)|5(?:[1-8]|[09]\d)|6(?:[0-6]|[789]\d)|8(?:[1246]|[035789]\d)|9(?:[0-58]|[679]\d))[\.\\/\-\ \t]*|([17])[\.\\/\-\ ])?(?:\((\d{1,6})\)[\.\\/\-\ \t]*)?(?:(\d{1,6})[\.\\/\-\ ])?(?:(\d{1,6})[\.\\/\-\ ])?(?:(\d{1,6})[\.\\/\-\ ])?(?:(\d{1,6})[\.\\/\-\ ])?(\d{0,10}?)(\d{1,4}+)(?:[\.\\/\-;\ \t]*e?xt?[\.\\/\-=\ \t]*(\d{1,14}))?)?)$/u is not a valid regular expression. | format constraint | |
| phone number | /^(?:(?:(?:(?:\+|00|011)[\.\\/\-\ \t]*([17]|2(?:[07]|[1-689]\d)|3(?:[0-4679]|[578]\d)|4(?:[013-9]|2\d)|5(?:[1-8]|[09]\d)|6(?:[0-6]|[789]\d)|8(?:[1246]|[035789]\d)|9(?:[0-58]|[679]\d))[\.\\/\-\ \t]*|([17])[\.\\/\-\ ])?(?:\((\d{1,6})\)[\.\\/\-\ \t]*)?(?:(\d{1,6})[\.\\/\-\ ])?(?:(\d{1,6})[\.\\/\-\ ])?(?:(\d{1,6})[\.\\/\-\ ])?(?:(\d{1,6})[\.\\/\-\ ])?(\d{0,10}?)(\d{1,4}+)(?:[\.\\/\-;\ \t]*e?xt?[\.\\/\-=\ \t]*(\d{1,14}))?)?)$/u is not a valid regular expression. | format constraint | |
| count of students | The parameter "property" must only have a single value. | required qualifier constraint | |
| IPv4 routing prefix | /^(?:(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]?|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]?|25[0-5])\\/([0-9]|[12][0-9]|3[0-2]))$/u is not a valid regular expression. | format constraint | |
| Library of Congress authority ID | This property should only have a single value with the same set of qualifiers for these properties: | single-value constraint | |
| Library of Congress authority ID | This property should only have a single value with the same set of qualifiers for these properties: | single-value constraint | |
| EU VAT number | An entity with EU VAT number should also have a statement headquarters location. | item-requires-statement constraint | |
| different from | University of Liverpool should also have the symmetric statement different from Liverpool Hope University. | symmetric constraint | |
| official website | This official website statement is missing a qualifier language of work or name. | required qualifier constraint |