There are three blocks. Lets call them A, B and C. There are one medium yellow square and one medium black square in block A. The medium yellow square is touching the bottom edge of this block. It is below the medium black square. Block B is to the left of block A. It has a medium yellow square. Below block B there is block C. It has a medium black square and a medium blue square. The medium black square is touching the bottom edge of this block. It is below the medium blue square.
Which object is below a medium yellow square? the medium black square which is in block A or the medium black square that is touching the bottom edge of a block?
the medium black square  which is in block A the medium black square  that is touching the bottom edge of a block  both of them none of them