About: http://webisa.webdatacommons.org/269468268

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	Generating the heightmap is quite easy, but generating structures like trees or ponds is a problem and here is why:
http://www.w3.org/ns/prov#wasQuotedFrom	gamedev.net