About: http://webisa.webdatacommons.org/334986496

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	He mentioned that in the old days, he would use special paint in different shades of black/gray/white to manually retouch an image where there was a trace of backscatter.
http://www.w3.org/ns/prov#wasQuotedFrom	wetpixel.com