If one image shows a shelf unit with open back and sides that resembles a ladder leaning on a wall, and it is not positioned in a corner.
return shelf unit ;return back of  #1 ;return #1 where #2 is  open ;return sides of  #1 ;return #1 where #4 are  open ;return #1 in  both  #3 and #5 ;return ladder ;return wall ;return #7 leaning on #8 ;return #6 that resembles #9 ;return corner ;return #10 not positioned in  #11 ;return if  #12 is  in  one image
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