PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • At the injection well 16 other components may be inserted, such as oxygen, nitrogen, ammonia, or other reactants which with the hydrocarbons will react to form compounds other than hydrocarbons, such as alcohols, ketones, esters, amines, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com