PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Sulfides such as MgS, BaS, GrS, TiS ZrS, ZrS.sub.2, HfS, VS, V.sub.2 S.sub.3, CrS, MoS.sub.2, WS.sub.2, the various rare earth sulfides;
http://www.w3.org/ns/prov#wasQuotedFrom
  • patents.com