PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Silica gel is a form of silicon dioxide, SiO2, the material that occurs in nature as sand.
http://www.w3.org/ns/prov#wasQuotedFrom
  • amazingcatlitter.com