About: http://webisa.webdatacommons.org/216983427

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	Most often, the reactive group can be a carboxylic acid, however, reactive groups such as alcohol, amine, anhydride, sulfonic acid, thiol, halotriazine, maleimide and vinyl sulfone, or the like can also be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com