About: http://webisa.webdatacommons.org/214937217

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 term heteroatom refers to nitrogen, oxygen, sulfur, other atoms or groups where the nitrogen, sulfur and other atoms may optionally be oxidized, and the nitrogen may optionally be quaternized.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk