Properties for connecting terms to the vocabulary

skos:inScheme connects an xapi:Verb or other xAPI term maintained as part of a vocabulary (xapi:ActivityType) to the skos:ConceptScheme that is the xAPI vocabulary it is part of. Make each Verb skos:inScheme of at least one concept scheme (the overarching vocabulary), plus any new versions of the vocabulary with new revisions.

xapi:referencedBy connects an xapi:Verb or other xAPI term not directly maintained by the vocabulary author to the skos:ConceptScheme that is the xAPI vocabulary referencing the term. Generally speaking, no properties should be provided for referenced Verbs or Activity Types other than xapi:thirdPartyLabel, xapi:referencedBy, or skos:scopeNote. This property (xapi:referencedBy) is a sub property of skos:inScheme.