About: http://webisa.webdatacommons.org/46259200

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 and R3 can also derive from a polyhydric alcohol, such as glycerol or pentaerythritol or from a polybasic carboxylic acid, such as citric acid, or from a polyvalent amine, such as ethylene diamine.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com