PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • YR2M(OR1)x-1 where M is one of silicon (Si), titanium (Ti), boron (B), aluminum (Al), zirconium or other ceramic types of metals;
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com