About: http://webisa.webdatacommons.org/195590120

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	X has the same meaning as in formula (I) and X' is a halogen atom, 1/either with:
http://www.w3.org/ns/prov#wasQuotedFrom	google.com