PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There certainly were extreme difficulties with the idea, as Maxwell was well aware, for to carry such high frequency vibrations as light the substance needed to be incredibly rigid, yet the earth, moon and other planets passed through this rigid material as if it were not there.
http://www.w3.org/ns/prov#wasQuotedFrom
  • st-and.ac.uk