<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://citymaps.com/m/cool-places-to-spend-an-afternoon-in-philadelphia/VenueMap>
<https://citymaps.com/m/cool-places-to-spend-an-afternoon-in-philadelphia/72a8a49e-b436-4d5e-a5e8-7c66a342899d>