PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Such a liquid is a new state of matter invisible to the naked eye that experts more than 30 years ago hypothesized might exist.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org