About: http://webisa.webdatacommons.org/165803657

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	gen atom or a halogen atom, Y represents an alkyl group or an alkoxy group each having 1 to 18 carbon atoms, k is an integer of 0, 1, or 2, and m is an integer of 0 or more. 3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com