PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Gas Hydrates International Nuclear Information System (INIS) The hydrates of gas are solid, similar to the ice, made up of rigid cages of molecules of water that they contain molecules of gas, mainly methane.
http://www.w3.org/ns/prov#wasQuotedFrom
  • worldwidescience.org