About: http://webisa.webdatacommons.org/414671939

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	r different and are a hydrogen atom, a halogen atom or a hydrocarbon-containing C1 -C40 radical, R3 is a trivalent hydrocarbon-containing C1 -C40 radical, and n is k and m is k-1 and M2 is silicon, germanium or tin.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca