"backrest"=>"yes","material"=>"metal","seats"=>"3"
"seats"=>"4","colour"=>"brown","backrest"=>"yes","material"=>"wood"
"seats"=>"4","colour"=>"brown","backrest"=>"yes","material"=>"plastic"
"seats"=>"4","colour"=>"brown","backrest"=>"yes","material"=>"plastic"
"seats"=>"2","colour"=>"gray","backrest"=>"yes","material"=>"plastic"