We have two blocks. Lets call them A and B. One medium blue square and one medium yellow square are in block A. The medium blue square is below the medium yellow square. Below block A there is block B which has three medium black squares. This block also has a medium blue square. Medium black square number one is touching the bottom edge of this block. Below medium black square number three and the medium blue square there is medium black square number two. Medium black square number three is below the medium blue square. Below medium black square number three and the medium blue square there is medium black square number one.
Which object is below a medium blue square? the medium black square that is touching the bottom edge of a block or medium black square number three?
the medium black square  that is touching the bottom edge of a block  medium black square  number three both of them none of them