"board:title"=>"Op de grens van land en water","board_type"=>"geology","direction"=>"270","information"=>"board","operator"=>"Waterschap Hollandse Delta"
"board_type"=>"map","information"=>"board"
"map_size"=>"region","map_type"=>"topo","information"=>"map"
"map_size"=>"region","map_type"=>"topo","information"=>"map"