About: http://webisa.webdatacommons.org/99251533

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	wherein Rf a and M have the meaning as defined in formula (IV), X is a hydrogen atom or a fluorine atom and r has a value of 2 to 15.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com