About: http://webisa.webdatacommons.org/360262260

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 Synthetic Schemes 1-3 above, X may be a halogen, such as iodo, bromo, chloro, or fluoro.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com