There are two blocks. Lets call them A and B. Block A has two medium blue squares. Medium blue square number one is below medium blue square number two. Above block A there is block B with one medium blue square, one medium yellow square and a medium black square in it. The medium blue square is touching the bottom edge of this block. The medium yellow square is below the medium black square. Below the medium yellow square and the medium black square there is the medium blue square.
Which object is below a medium square? the medium blue square that is touching the bottom edge of a block or the medium black square?
the medium blue square  that is touching the bottom edge of a block  the medium black square  both of them none of them