Wikidata:Database reports/Complex constraint violations/P279

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Complex constraint violations report for subclass of (discussion, uses, items, changes): this item is a subclass (subset) of that item; all instances of this item are instances of that item; different from P31 (instance of), e.g.: K2 is an instance of mountain; volcano is a subclass of mountain (and an instance of volcanic landform)

Data time stamp: (UTC)

The report is generated based on the settings on Property talk:P279.

Updates overwrite this page. Some may already be fixed since the last update: check RecentChangesLinked.

The report can include false positives. No need to "fix" them.

Can't be ?class P279 ?class[edit]

Can't be ?class P279 ?class
impossible claim or it should be a separate item
query in WDQS
4 violations
Query time: 4.28 s

Property cannot form cycles (size 2)[edit]

Property cannot form cycles (size 2)
impossible claim or items should be merged — specific to the size 2 cycles as the generic query is too expensive
query in WDQS
76 violations
Query time: 38.85 s

Property cannot form cycles (size 3)[edit]

Property cannot form cycles (size 3)
impossible claim or items should be merged — specific to the size 3 cycles as the generic query is too expensive. A few could be found initially, maybe it will timeout when those are corrected.
query in WDQS
5 violations
Query time: 33.88 s

Physical objects should not be subclasses (1 level)[edit]

Physical objects should not be subclasses (1 level)
Instances of physical object or its immediate subclasses should not be subclasses of anything
query in WDQS
422 violations
Query time: 2.33 s

Physical objects should not be subclasses (2+ levels)[edit]

Physical objects should not be subclasses (2+ levels)
Instances of physical object or its subclasses should not be subclasses of anything
query in WDQS
0 violations
Possible query timeout during transmission
Errors during constraint evaluation:
Cannot parse WDQS response as JSON object (likely reason: query timeout)
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