PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Finding gravitational waves gives us another mechanism for learning about black holes and other space events firsthand.Einstein's general theory of relativity predicts that objects such as spinning superdense neutron stars, collapsing and exploding stars, and black holes emit gravity waves, which move unseen through the universe, subtly distorting the world around us.
http://www.w3.org/ns/prov#wasQuotedFrom
  • astronomy.com