About: http://webisa.webdatacommons.org/321019256

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	SiRm (OR#)4-m where R is an alkyl group, a cycloalkyl group, an aryl group or a vinyl group, R# is an alkyl group, m is 0-4, R may be the same or different, R# may be the same or different.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com