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