TODO



  * Include last-update timestamp and source for each dataset.
  * Check if Orø_Camping_Ishuset hours are limited (to summer only?)
  * Check source of Dagli'Brugsen#mail
  * Add categories: interest_area, institutional/commercial/volunteer, etc.

  * join hours for related entities (e.g. church + church office)
  * include data from surrounding mainland

  * scrape from <http://www.virk.dk/soeg.html?x=orø>
  * scrape from <http://openhours.dk/spots?q=orø>
  * scrape/verify from <http://www.oroe.s-10.dk/>
  * scrape/verify from <http://www.kulturholbaek.dk/>
  * scrape/verify from <http://holbaekonline.dk/>

  * fix tie only gr:location (not gr:BusinessEntity) directly to
    gr:hasOpeningHourSpecification
  * fix use gr:description instead of rdfs:comment

  * encode output as RDFa
  * add CSS styling
  * publish data as LOD site.