About: http://webisa.webdatacommons.org/217946396

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	Among the enumerated smoke producing agents were polyhydric alcohols, such as propylene glycol, glycerol, and 1,3-butylene glycol, and glyceryl esters, such as triacetin.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com