<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Exact_solutions_in_general_relativity> .
<http://caligraph.org/resource/Roger_Penrose>	<http://caligraph.org/ontology/knownFor>	<http://caligraph.org/resource/Pp-wave_spacetime> .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/Pp-wave_spacetime> .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/2004/02/skos/core#altLabel>	"pp-wave spacetime" .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/2000/01/rdf-schema#label>	"Pp-wave spacetime" .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/2004/02/skos/core#altLabel>	"pp-wave" .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"Pp-wave spacetime" .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Index_of_wave_articles> .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Index_of_physics_articles_(P)> .
<http://caligraph.org/resource/Pp-wave_spacetime>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/Exact_solution_in_general_relativity> .