<http://caligraph.org/ontology/Windowing_system>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Windowing_system>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Windowing_systems> .
<http://caligraph.org/ontology/Window-based_operating_system>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Windowing_system> .
<http://caligraph.org/ontology/Windowing_system>	<http://www.w3.org/2000/01/rdf-schema#label>	"Windowing system" .
<http://caligraph.org/ontology/Windowing_system>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/System> .
<http://caligraph.org/ontology/Windowing_system>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/RestrictionHasValue_genre_Windowing%20system> .
<http://caligraph.org/ontology/Free_windowing_system>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Windowing_system> .