PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Sulphur is an element which is formed in the alpha-process and is easily measured in the gaseous phase in external galaxies.
http://www.w3.org/ns/prov#wasQuotedFrom
  • osti.gov