PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Yang hopes these circles will one day use carbon dioxide emitted by automobiles and water from the atmosphere to create fuels such as methane, methanol, and butanol.
http://www.w3.org/ns/prov#wasQuotedFrom
  • globalsystemsscience.org