PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When the volcano conduit at depth is under pressure, super-heated steam and other gases can leak out of the conduit and raise the pressure in the fractured rock over a broad region.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org