About: http://webisa.webdatacommons.org/383702059

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	The heteroatoms present in the heteroaromatic ring may be a combination of one or more atoms such as nitrogen, oxygen or sulfur.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com