About: http://webisa.webdatacommons.org/177697562

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	where A??? is as defined herein, X3 is halogen, such as chloro, bromo or iodo (preferably iodo) and B, Ar1, Ar2, and X (preferably alkoxy) are as defined herein.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com