<http://dbpedia.org/resource/Category:Primary_colors> <http://www.w3.org/2004/02/skos/core#broader> <http://dbpedia.org/resource/Category:Colors> . <http://dbpedia.org/resource/Category:Primary_colors> <http://www.w3.org/2007/05/powder-s#describedby> <https://covidontheweb.inria.fr:4443/about/id/entity/http/dbpedia.org/resource/Category:Colors> .