PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These exploration, drilling and production activities will be subject to many risks, including the risk that coalbed methane or other natural gas is not present in sufficient quantities in the coal seam or
http://www.w3.org/ns/prov#wasQuotedFrom
  • marketplace.org