PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ed in U.S. Pat. No. 2,619,481, and the organic polysulfides, which possess the general formula R-(S)x -R where R is a hydrocarbon group and x is a number from 2 to 4.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.co.uk