PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • [M(O)x(OH)y(OR)z]n where M is a metal, R is an alkyl group containing from 1 to 30 carbon atoms; x+y+z=V, the valence of M; x is at least 1, y is at least 1, z is at least 1; x=V???y???z; y=V???x???z; z=V???x???y; n is greater than 2.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com