About: http://webisa.webdatacommons.org/274950146

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 R19 and R20 represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, x is an integer of 1 to 5, and Z represents an alkylene group having 3 to 8 carbon atoms, an oxygen group, a sulfur group, or a carbonyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au