PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The universe contained mainly protons, neutrons and electrons, all bathed in a sea of light.The protons, equivalent to hydrogen nuclei, reacted with other particles in the next few minutes to form light nuclei such as helium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • goodreads.com