"supervised"=>"no","button_operated"=>"no","traffic_signals:sound"=>"no"
"horse"=>"yes","bicycle"=>"yes","crossing:island"=>"yes"
"crossing"=>"uncontrolled","crossing_ref"=>"zebra"
"bicycle"=>"yes","crossing"=>"uncontrolled","horse"=>"yes"
"crossing"=>"uncontrolled","crossing_ref"=>"zebra"
"horse"=>"yes","bicycle"=>"yes","crossing:island"=>"yes"
"horse"=>"yes","bicycle"=>"yes","crossing:island"=>"yes"
"bicycle"=>"yes","crossing"=>"uncontrolled","horse"=>"yes"