About: http://webisa.webdatacommons.org/62985274

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	...and here is a collected list of a few different tile generators of various kinds.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com