PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Thus, any separation system which will remove contaminants such as CO2, H2S, VOCs, etc. from methane contained in a biogas stream can be used.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freshpatents.com