<http://caligraph.org/ontology/History_book_about_the_20th_century>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Work_set_in_the_20th_century> .
<http://caligraph.org/ontology/History_book_about_the_Algerian_War>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_the_20th_century> .
<http://caligraph.org/ontology/History_book_about_World_War_I>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_the_20th_century> .
<http://caligraph.org/ontology/History_book_about_the_20th_century>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:History_books_about_the_20th_century> .
<http://caligraph.org/ontology/History_book_about_the_20th_century>	<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_the_20th_century>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_the_late_modern_period> .
<http://caligraph.org/ontology/History_book_about_interwar_Europe>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_the_20th_century> .
<http://caligraph.org/ontology/History_book_about_World_War_II>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_the_20th_century> .
<http://caligraph.org/ontology/History_book_about_the_20th_century>	<http://www.w3.org/2000/01/rdf-schema#label>	"History book about the 20th century" .
<http://caligraph.org/ontology/History_book_about_the_Six-Day_War>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/History_book_about_the_20th_century> .