"backrest"=>"yes","direction"=>"ENE","material"=>"wood","seats"=>"4"
"backrest"=>"no","material"=>"wood","seats"=>"3","survey:date"=>"2020-12"
"seats"=>"4","colour"=>"blue","backrest"=>"yes","material"=>"plastic","direction"=>"W"
"backrest"=>"yes","direction"=>"E","material"=>"wood","seats"=>"4"
"seats"=>"4","colour"=>"blue","backrest"=>"yes","material"=>"plastic"
"seats"=>"4","colour"=>"blue","backrest"=>"yes","material"=>"wood"
"seats"=>"4","backrest"=>"yes","material"=>"wood","direction"=>"S"
"seats"=>"4","colour"=>"green","backrest"=>"yes","material"=>"metal"