About: http://webisa.webdatacommons.org/52717246

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	This region is a region having a limited variation in lightness and a difference in lightness of at least threshold Ref1 (R) from a region surrounding it.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com