About: http://webisa.webdatacommons.org/22934640

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 tooth-whitening agent may comprise, for example, a peroxide, such as hydrogen peroxide, urea peroxide, carbamide peroxide or any other agents known to whiten.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com