About: http://webisa.webdatacommons.org/197229793

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	Because silica is a mineral, I know there are advantages to this and that many people have had good results with it.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com