About: http://webisa.webdatacommons.org/279925375

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	Herein, R1, R2, R3, p, q, r and the wavy line are as defined above, and X is a halogen atom, i.e., fluorine, chlorine, bromine or iodine, and especially bromo or iodo.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au