About: http://webisa.webdatacommons.org/177502687

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	Light hardens any uncovered area of the plate, but the emulsion can be washed out of the lines and other areas covered by the drawing.
http://www.w3.org/ns/prov#wasQuotedFrom	washingtonprintmakers.com