From Terminology Sandbox Wiki
URIs of the form "http://www.w3.org/1999/02/22-rdf-syntax-ns#Property%22 are not allowed.
|is in semantic relation with|
Warning: Conflicting URIs
|Search for values|
Notes: This property should not be used directly, but as a super-property for all properties denoting a relationship of meaning between concepts.
Constraints in the context of Simple Knowledge Organization System: