About: http://webisa.webdatacommons.org/424651970

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	Perhaps the pigment one is for b+w copies, prints, etc and the chromalife one is for pictures or other full color images.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com