<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://citymaps.com/m/a-vegetarians-guide-to-porto/VenueMap>
<https://citymaps.com/m/a-vegetarians-guide-to-porto/2d58b7d5-82af-4a6f-92d4-2d3ae319fff5>