We have three blocks. Lets call them A, B and C. A medium black square is in block A. Below a medium blue square there is the medium black square. Block B is above block A. It has a medium blue square. It also contains a medium black square. The medium black square is below the medium blue square. Finally, we have block C to the left of block A. It contains a medium black square.
Which object is above a medium black square? the medium blue square that is in block B or the medium blue square that is in block A?
the medium blue square  that is in block B the medium blue square  that is in block A both of them none of them