About: http://webisa.webdatacommons.org/446411113

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	and Z.sup.2 denotes a leaving group such as a halogen atom, an alkylsulphonyloxy, arylsulphonyloxy or a hydroxy group.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com