"information"=>"office","source:date"=>"2014-06-05"
"information"=>"map","survey:date"=>"2022-03-06"
"board_type"=>"nature","information"=>"board"
"board_type"=>"art","direction"=>"89","information"=>"board"
"board_type"=>"nature","information"=>"board"
"information"=>"guidepost","operator"=>"Gemeente Leiden"
"bicycle"=>"yes","description"=>"Informatie paneel (fietsroutekaart met beknopte gebieds-beschrijving)","hiking"=>"no","information"=>"map","map_size"=>"region","map_type"=>"topo","network"=>"rcn"
"information"=>"map","map_size"=>"city","map_type"=>"street"