PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • its metal halides, oxide, sulfide or other metal salts, such as silver and silver halides (e.g., silver chloride, silver bromide, silver iodide, silver fluoride), silver oxide, silver sulfide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com