About: http://webisa.webdatacommons.org/187723322

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	R3 CH═C(R4)--COOR6 wherein R3 and R4 are as defined previously with respect to Formula (XXX), and R6 is a lower alkyl, preferably methyl or ethyl, followed by hydrolysis of the ester with a strong base and acidification.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com