<http://caligraph.org/ontology/History_book_about_Vietnam>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Work_about_Vietnamese_history> .
<http://caligraph.org/ontology/History_book_about_Vietnam>	<http://www.w3.org/2000/01/rdf-schema#label>	"History book about Vietnam" .
<http://caligraph.org/ontology/History_book_about_Vietnam>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:History_books_about_Vietnam> .
<http://caligraph.org/ontology/History_book_about_Vietnam>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/History_book_about_Vietnam>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_countries> .
<http://caligraph.org/ontology/History_book_about_French_Indochina>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_Vietnam> .
<http://caligraph.org/ontology/Vietnam_War_book>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_Vietnam> .
<http://caligraph.org/ontology/History_book_about_Vietnam>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_Asia> .