About: http://webisa.webdatacommons.org/427065460

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	In addition to the four carbonyl groups, Ar1 and Ar2 can contain other substituents such as alkyl, alkoxy, halo, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au