Pulk/Pull Revolving Doors
There are barn doorsAnd there are revolving doorsDoors on the rudders of big shipsThere are revolving doorsThere are doors that open by themselvesThere are sliding doorsAnd there are secret doorsThere are doors that lockAnd doors that don'tThere are doors that let you in and outBut never openAnd there are trapdoorsThat you can't come back from