There are two blocks. Lets call them A and B. A medium blue square is in block A. This block also contains a medium black square and a medium yellow square. The medium black square is below the medium yellow square. The medium blue square is touching the bottom edge of this block. This object is below the medium yellow square. It is below the medium black square. Block B is to the right of block A. It contains one medium blue square. A medium black square is touching the bottom edge of this block. It is below the medium blue square.
Which object is below a medium black square? the medium black square that is touching the bottom edge of a block or the yellow thing?
the medium black square  that is touching the bottom edge of a block  the yellow thing both of them none of them