About: http://webisa.webdatacommons.org/321962357

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	Height-maps must also meet the additional requirement of having side lengths of (2n+1) * (2n+1) pixels, where n is an integer between 1 and 15.
http://www.w3.org/ns/prov#wasQuotedFrom	cafu.de