About: http://webisa.webdatacommons.org/378146542

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	One component is an aqueous ink that includes a dye--typically a triarylmethane--that can be converted to a colorless form when contacted with a substance such as a sulfite reducing agent or an amine.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca