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