We have three blocks. Lets call them A, B and C. There is one medium yellow square in block A. A medium blue square is below a medium black square and the medium yellow square. This object is touching the bottom edge of this block. The medium black square is below the medium yellow square. Block B is above block A. It has a medium blue square. Finally, we have block C. It is below block B. It contains one medium yellow square.
Which object is below a medium blue square? the medium yellow square that is in block A or the medium yellow square which is in block C?
the medium yellow square  that is in block A the medium yellow square  which is in block C both of them none of them