About: http://webisa.webdatacommons.org/41664204

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	In cases where R2 is a group other than a hydrogen atom, R1 is a substituted or unsubstituted alkyl or cycloalkyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com