About: http://webisa.webdatacommons.org/288430587

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	Since you have a 3D matrix where XY-planes are CT scan slices and each slice is an image, I would try to find edges of each slice say with edge.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com