About: http://webisa.webdatacommons.org/212199072

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	These problems are particularly severe in areas where the reflective surface topography is ???stepped??? (where the reflective surface is rising or falling, such as at the edges of a gate stack).
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr