About: http://webisa.webdatacommons.org/320586158

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	R2 also may be a monovalent group of a carboxylic acid such as a group derived from acetic acid, stearic acid, salicyclic acid, methacrylic acid, maleic acid, benzoic acid and beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es