"addr:country"=>"NL","source:date"=>"2014-03-24"
"institution:pedagogy"=>"dalton","operator"=>"Primato","source:date"=>"2014-03-24"
"denomination"=>"roman_catholic","old_name"=>"Don Bosco","operator"=>"Dr. Schaepmanstichting","source:date"=>"2014-03-24"
"denomination"=>"roman_catholic","operator"=>"Scholengroep Carmel Hengelo","religion"=>"christian","source:date"=>"2017-07-20"