About: http://webisa.webdatacommons.org/450623704

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	R5 aHbSiO(4-a-b)/2???(3) wherein R5 is a substituted or unsubstituted monovalent hydrocarbon group except an alkenyl group, preferably, having 1 to 8 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com