reproduced here for convenience:
"I think it is probably more correct to say that dcat:keyword, whose range is rdfs:Literal, is a subproperty of dc:subject. By contrast, dct:subject (quoting) "is intended to be used with non-literal values" - as dcat:theme."
dcat3.ttl
includesdcat:keyword rdfs:subPropertyOf dcterms:subject ;
: https://github.com/w3c/dxwg/blob/836b201802c0859c20bd066816e0c2cebb239f12/dcat/rdf/dcat3.ttl#L1034which had been discussed as an errata here: https://github.com/w3c/dxwg/issues/175
The solution is in @andrea-perego's comment: https://github.com/w3c/dxwg/issues/175#issuecomment-375808963
reproduced here for convenience: "I think it is probably more correct to say that
dcat:keyword
, whose range isrdfs:Literal
, is a subproperty ofdc:subject
. By contrast,dct:subject
(quoting) "is intended to be used with non-literal values" - asdcat:theme
."