<http://caligraph.org/resource/Bernhard_Neumann>	<http://caligraph.org/ontology/knownFor>	<http://caligraph.org/resource/Petr%E2%80%93Douglas%E2%80%93Neumann_theorem> .
<http://caligraph.org/resource/Petr%E2%80%93Douglas%E2%80%93Neumann_theorem>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Theorems_about_quadrilaterals> .
<http://caligraph.org/resource/Petr%E2%80%93Douglas%E2%80%93Neumann_theorem>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Petr%E2%80%93Douglas%E2%80%93Neumann_theorem> .
<http://caligraph.org/resource/Petr%E2%80%93Douglas%E2%80%93Neumann_theorem>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Theorem_about_quadrilaterals> .
<http://caligraph.org/resource/Petr%E2%80%93Douglas%E2%80%93Neumann_theorem>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Petr\u2013Douglas\u2013Neumann theorem" .
<http://caligraph.org/resource/Petr%E2%80%93Douglas%E2%80%93Neumann_theorem>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/Petr%E2%80%93Douglas%E2%80%93Neumann_theorem>	<http://www.w3.org/2000/01/rdf-schema#label>	"Petr\u2013Douglas\u2013Neumann theorem" .