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