There are three blocks, A, B and C. A medium yellow square and one medium black square are in block A. The medium yellow square is below the medium black square. Above block A we have block B. It has a medium blue square and one medium black square. The medium blue square is below the medium black square. To the left of block A there is block C which has one medium blue square.
Which object is above a yellow object? the medium black square that is in block B or the medium black square which is in block A?
the medium black square  that is in block B the medium black square  which is in block A both of them none of them