About: http://webisa.webdatacommons.org/454657031

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 which R11 is a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, aryl group or aralkyl group and X is chlorine, bromine or iodine).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com