"map_size"=>"region","map_type"=>"street","information"=>"map"
"board_type"=>"nature","information"=>"board"
"map_size"=>"site","map_type"=>"street","information"=>"map"
"board_type"=>"nature","information"=>"board","operator"=>"Staatsbosbeheer"
"map_size"=>"site","map_type"=>"street","information"=>"map"
"mtb"=>"yes","ref"=>"25055/001","horse"=>"yes","hiking"=>"yes","bicycle"=>"yes","operator"=>"Nationale Bewegwijzeringsdienst","guidepost"=>"paddenstoel","information"=>"guidepost"