About: http://webisa.webdatacommons.org/35797773

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Such materials include various inert inorganic materials such as silica, quartz, alumina, calcium and metal salts and organic powders such as polycarbonates, polyvinylidene fluorides, polyethylenes, and other polymeric powders.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca