<http://dbpedia.org/resource/Double_wedge> <http://dbpedia.org/ontology/wikiPageWikiLink> <http://dbpedia.org/resource/Projective_geometry> . <http://dbpedia.org/resource/Double_wedge> <http://www.w3.org/2007/05/powder-s#describedby> <https://covidontheweb.inria.fr:4443/about/id/entity/http/dbpedia.org/resource/Projective_geometry> . <http://dbpedia.org/resource/Double_wedge> <http://dbpedia.org/ontology/wikiPageWikiLink> <http://dbpedia.org/resource/Category:Euclidean_geometry> . <http://dbpedia.org/resource/Double_wedge> <http://purl.org/dc/terms/subject> <http://dbpedia.org/resource/Category:Euclidean_geometry> . <http://dbpedia.org/resource/Double_wedge> <http://www.w3.org/2007/05/powder-s#describedby> <https://covidontheweb.inria.fr:4443/about/id/entity/http/dbpedia.org/resource/Category:Euclidean_geometry> .