About: http://webisa.webdatacommons.org/13199827

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	As used herein, chemicals" includes not only solutions, molecules, ions, and atoms, but also subatomic particles, such as electrons.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk