<http://caligraph.org/ontology/1970_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1974_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1976_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1970s_short_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1970s_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_documentary_film> .
<http://caligraph.org/ontology/1979_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1978_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1970s_documentary_film>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/1973_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1977_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1970s_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#label>	"1970s documentary film" .
<http://caligraph.org/ontology/1970s_documentary_film>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:1970s_documentary_films> .
<http://caligraph.org/ontology/1970s_educational_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1975_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1972_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1971_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_documentary_film> .
<http://caligraph.org/ontology/1970s_documentary_film>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_film> .