About: http://webisa.webdatacommons.org/19882379

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	Typical groups defined by CO2 R3 include the free carboxy acid when R3 is hydrogen, and esters such as C1 -C6 alkyl esters, benzyl esters, cyclobutyl esters, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com