PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Xenon is a heavy gas, and breathing it in causes the voice to lower in pitch, much like the light helium raises the voice's pitch.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dinodirect.com