About: http://webisa.webdatacommons.org/340408665

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	For example, R2 preferably is an alkyl group with a larger number of carbon atoms than R1 or an alkenyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr