About: http://webisa.webdatacommons.org/269088308

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	In general, the term ???hetero??? denotes an atom other than carbon, preferably but not exclusively N, O, or S, SO and SO2.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca