PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, we do not understand which processes control oceanic concentrations, and hence, whether the oceans are a source or a sink to the atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science.gov