<http://caligraph.org/ontology/Russian_astronomer>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Russian_astronomer>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Russian_astronomers> .
<http://caligraph.org/ontology/Astronomer_of_the_Russian_Empire>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Russian_astronomer> .
<http://caligraph.org/ontology/Russian_astronomer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Astronomer> .
<http://caligraph.org/ontology/21st-century_Russian_astronomer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Russian_astronomer> .
<http://caligraph.org/ontology/18th-century_astronomer_of_the_Russian_Empire>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Russian_astronomer> .
<http://caligraph.org/ontology/Russian_astronomer>	<http://www.w3.org/2000/01/rdf-schema#label>	"Russian astronomer" .
<http://caligraph.org/ontology/19th-century_astronomer_of_the_Russian_Empire>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Russian_astronomer> .
<http://caligraph.org/ontology/20th-century_Russian_astronomer>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Russian_astronomer> .