About: http://webisa.webdatacommons.org/11816123

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	wherein Y is hydrogen or a methyl radical and R5 is an alkyl radical, preferably an alkyl radical comprising 1 to about 20 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com