About: http://webisa.webdatacommons.org/238909718

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	a nitrogen base, for example ammonia or an amine, for example an amine of formula wherein R1, R2 and R3 are as defined above.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com