<http://caligraph.org/ontology/1930s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/1990s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/1920s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/1960s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/20th-century_birth>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:20th-century_births> .
<http://caligraph.org/ontology/20th-century_birth>	<http://www.w3.org/2000/01/rdf-schema#label>	"20th-century birth" .
<http://caligraph.org/ontology/1940s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/2000_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/1910s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/20th-century_birth>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/1900s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/1980s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_birth> .
<http://caligraph.org/ontology/1950s_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/20th-century_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/20th-century_birth>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/2nd-millennium_birth> .