About: http://webisa.webdatacommons.org/256148128

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	Said ???heterocyclic group??? may have 1 to 3 substituents such as lower alkyl as exemplified above, hydroxy, oxo, amino and lower alkylamino.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr