<http://caligraph.org/ontology/Oil_company_of_Russia>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_and_gas_company_of_Russia> .
<http://caligraph.org/ontology/Natural_gas_company_of_Russia>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_and_gas_company_of_Russia> .
<http://caligraph.org/ontology/Oil_and_gas_company_of_Russia>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Energy_company_of_Russia> .
<http://caligraph.org/ontology/Oil_and_gas_company_of_Russia>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Oil_and_gas_companies_of_Russia> .
<http://caligraph.org/ontology/Oil_and_gas_company_of_Russia>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Oil_and_gas_company_of_Russia>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_and_gas_company_of_Asia> .
<http://caligraph.org/ontology/Oil_and_gas_company_of_Russia>	<http://www.w3.org/2000/01/rdf-schema#label>	"Oil and gas company of Russia" .
<http://caligraph.org/ontology/Oil_and_gas_company_of_Russia>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_and_gas_company_of_Europe> .