<http://caligraph.org/ontology/Oil_refinery_in_Libya>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Africa>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery> .
<http://caligraph.org/ontology/Oil_refinery_in_Uganda>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Ghana>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Sudan>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Zambia>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Kenya>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Africa>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Oil_refineries_in_Africa_by_country> .
<http://caligraph.org/ontology/Oil_refinery_in_Nigeria>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Tanzania>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Africa>	<http://www.w3.org/2000/01/rdf-schema#label>	"Oil refinery in Africa" .
<http://caligraph.org/ontology/Oil_refinery_in_Africa>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Oil_refineries_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Angola>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Oil_refinery_in_Africa> .
<http://caligraph.org/ontology/Oil_refinery_in_Africa>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .