About: http://webisa.webdatacommons.org/33721315

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	Two-color mappers are commercially available for taking say a Postscript file in R, G, B and mapping same into black and one other color such as red.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com