PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The signals, called waveforms", are shaped by factors such as the frequency at which the two black holes orbit each other, their relative masses and their spins.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newscientist.com