About: http://webisa.webdatacommons.org/4698693

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	ken together may form a heterocyclic group having five to seven ring members including the nitrogen
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com