We have three blocks. Lets call them A, B and C. Block A has two medium black squares. A medium blue square is also in this block. Below the medium blue square and medium black square number two is medium black square number one. It is touching the bottom edge of this block. Below the medium blue square is medium black square number two. Above block A there is block B. It contains one medium yellow square. Finally, we have block C to the right of block A. It contains a medium yellow square and one medium blue square. The medium yellow square is below the medium blue square.
Which object is below a medium yellow square? the medium black square that is touching the bottom edge of a block or medium black square number two?
the medium black square  that is touching the bottom edge of a block  medium black square  number two both of them none of them