{"names":["property","value"],"values":[["<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>","<http://www.w3.org/2002/07/owl#Class>"],["<http://www.w3.org/2000/01/rdf-schema#comment>","\"Petroleum  or crude oil is a naturally occurring, flammable liquid found in rock formations in the Earth consisting of a complex mixture of hydrocarbons of various molecular weights, plus other organic compounds. [Wikipedia]\"@en"],["<http://www.w3.org/2000/01/rdf-schema#label>","\"petroleum\"@en"],["<http://www.w3.org/2000/01/rdf-schema#subClassOf>","<http://sweetontology.net/matrNaturalResource/Oil>"]]}