About: http://webisa.webdatacommons.org/139444493

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	Z represents an acid group, such as a carboxylic, phosphonic or phosphoric acid group; m is 0 or 1, and n is 1 or 2. [0054] Examples of suitable Rf 2 groups include those given above for R1 f.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com