PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • During the webcast the scientists discussed the possibility that the methane could have remained trapped inside clathrates (a gas or liquid physically trapped in the pores of an ice, rock or other solid) and that the source of this methane, created by a geological or biological source, could have remained trapped for billions of years until it was released.
http://www.w3.org/ns/prov#wasQuotedFrom
  • astronomynow.com