About: http://webisa.webdatacommons.org/297328774

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	The thing is that a wall is a zero width, two dimentional (height*length, in a 3D world) square partitioning two Boxes.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com