<http://caligraph.org/ontology/Book_by_Robert_Zubrin>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/RestrictionHasValue_author_Robert%20Zubrin> .
<http://caligraph.org/ontology/Book_by_Robert_Zubrin>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/American_book> .
<http://caligraph.org/ontology/Book_by_Robert_Zubrin>	<http://www.w3.org/2000/01/rdf-schema#label>	"Book by Robert Zubrin" .
<http://caligraph.org/ontology/Book_by_Robert_Zubrin>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Work_by_American_writers> .
<http://caligraph.org/ontology/Book_by_Robert_Zubrin>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Books_by_Robert_Zubrin> .
<http://caligraph.org/ontology/Book_by_Robert_Zubrin>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .