PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In short, in current versions of BFO, there is no intuitive way of modelling the length of a region in space.Omissions BFO is mass-centric; it is currently unclear where many physical entities exist, examples including energy, waves (through a medium) or EM radiation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nih.gov