About: http://webisa.webdatacommons.org/401346631

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	Thus, the ???silicon oxide-containing substance??? may be a substance consisting of only oxygen and silicon, and a substance comprising oxygen, silicon, and an element other than oxygen and silicon.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com