<http://caligraph.org/ontology/Natural_gas_field_in_Tanzania>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Natural_gas_field> .
<http://caligraph.org/ontology/Natural_gas_field_in_Tanzania>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Natural_gas_field_in_Tanzania>	<http://www.w3.org/2000/01/rdf-schema#label>	"Natural gas field in Tanzania" .
<http://caligraph.org/ontology/Natural_gas_field_in_Tanzania>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Natural_gas_fields_in_Tanzania> .