PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Companies such as Dow Chemical, Dupont and Procter & Gamble now use the site, and the kinds of problems raised are often just as much about improving productivity as they are about molecular synthesis.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newscientist.com