"email"=>"[email protected]","museum"=>"history","source:date"=>"2014-02-11"
"email"=>"[email protected]","fee"=>"yes","opening_hours"=>"11:00-17:00; Jan 1 off; Dec 25 off; Dec 31 off","payment:museumkaart"=>"yes","source:date"=>"2014-03-24"
"ref:bag"=>"512010000017741","wikidata"=>"Q2530116","opening_hours"=>"Tu-Sa 10:00-17:00; Su 13:00-17:00"