"backrest"=>"yes","check_date"=>"2021-02-26"
"backrest"=>"yes","material"=>"wood","seats"=>"3","survey:date"=>"2021-03-01"
"backrest"=>"yes","material"=>"wood","seats"=>"3","survey:date"=>"2021-03-01"
"backrest"=>"no","material"=>"wood","seats"=>"3","survey:date"=>"2021-03-01"