PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As the unification of gravity with the other three forces is not done yet, the diagrams are a guess that is missing an incoming photon, Z0, gluon .. and an outgoing photon, Z0, gluon... ( do not now if gravitons can make a pair directly, were they unified with the rest) as the real particle in the feynman graphs.
http://www.w3.org/ns/prov#wasQuotedFrom
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