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