"source:date"=>"2014-02-11","opening_hours"=>"Mo-Sa 11:00-12:30,13:30-17:00; Su 13:30-16:00; \"except the winter period\""
"fee"=>"yes","opening_hours"=>"Dec: We-Sa 13:30-17:00","payment:museumkaart"=>"yes","source:date"=>"2014-02-11"
"fee"=>"yes","opening_hours"=>"Mo-Fr 11:00-17:00; Sa-Su 13:30-17:00","payment:museumkaart"=>"yes","source:date"=>"2014-02-11"