About: http://webisa.webdatacommons.org/451103381

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	and R2 are an alkyl group or an aryl group), or --ONCR1 R2 group (R1 and R2 are an alkyl group or an aryl group).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com