About: http://webisa.webdatacommons.org/284952254

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	Other olefins which can be used are dienes, in which case Ra or Rb is a C2 -C12 -alkene and Ra and Rb can here too also be joined to form a ring.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com