About: http://webisa.webdatacommons.org/288381272

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	Z is N or C--R, where R is H or an organic group such as alkyl (preferably C1 -C12), aryl (preferably C6 -C12), or aralkyl (preferably C6 -C12).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com