"pedagogy"=>"montessori","source:date"=>"2014-08-16"
"denomination"=>"roman_catholic","source:date"=>"2014-08-16"
"operator"=>"SKOR","source:date"=>"2014-08-16"
"isced:level"=>"1","operator"=>"Stichting Openbaar Primair Onderwijs Rivierenland","source:date"=>"2014-08-15"
"operator"=>"Stichting Entrea Onderwijs","source:date"=>"2014-08-16"