About: http://webisa.webdatacommons.org/273787802

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	R2 preferably signifies --CN, --NCS or a straight-chain alkyl or alkoxy group with 1 to 12, especially 1 to 7, carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com