PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the polymerization of olefins, transition metal compounds containing transition metals such as titanium and zirconium are generally employed as catalyst components.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com