<http://caligraph.org/ontology/1977_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1976_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1975_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1978_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1970_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1970s_birth>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:1970s_births> .
<http://caligraph.org/ontology/1972_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1970s_birth>	<http://www.w3.org/2000/01/rdf-schema#label>	"1970s birth" .
<http://caligraph.org/ontology/1973_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1979_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1971_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1970s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/1974_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/1970s_birth> .
<http://caligraph.org/ontology/1970s_birth>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .