About: http://webisa.webdatacommons.org/372219037

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	So do I with the tile-JSON. Then I extract the JSON-information for the tile (is the overlay a direct image or information such as a city name, which I have to draw into the tile) and draw or load the overlay (from DB/Disc or Server)
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com