About: http://webisa.webdatacommons.org/407777441

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 first form of the sensitizing dye is a protonated form and the second form is a deprotonated form, and the two forms are reversibly interconverted by contact with base or acid.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com