"operator"=>"Staatsbosbeheer","information"=>"map","survey:date"=>"2019-09-30"
"information"=>"map","map_size"=>"site","map_type"=>"topo"
"ref"=>"Startpunt MTB-route Noordwijk","information"=>"guidepost"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"bicycle"=>"no","hiking"=>"yes","horse"=>"no","information"=>"route_marker","mtb"=>"no","operator"=>"Staatsbosbeheer","ski"=>"no"
"map_size"=>"city","map_type"=>"street","information"=>"map"
"hiking"=>"yes","map_size"=>"region","map_type"=>"street","information"=>"map"
"board_type"=>"history","description"=>"Part of Max Liebermann Route (board no. 6)","information"=>"board"
"mtb"=>"yes","ref"=>"22573/001","horse"=>"yes","hiking"=>"yes","bicycle"=>"yes","operator"=>"Nationale Bewegwijzeringsdienst","guidepost"=>"paddenstoel","information"=>"guidepost"
"ref"=>"Amsterdamse Waterleiding Duinen","operator"=>"Water Net","information"=>"board"
"map_size"=>"site","map_type"=>"street","information"=>"map","source:date"=>"2014-06-11"
"operator"=>"Waternet","board_type"=>"wildlife","information"=>"board"
"operator"=>"Zuid-Hollands Landschap","information"=>"board"