About: http://webisa.webdatacommons.org/199713171

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	Going from a display co-ordinate to image co-ordinate is a matter of solving for xo: xo = (xt - dx) / Sx.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com