There are three blocks. Lets call them A, B and C. Block A has a medium black square. Then, there is block B which has two medium yellow squares. There is also one medium black square in this block. It is below medium yellow square number two. A medium blue square is below medium yellow square number two , the medium black square and medium yellow square number one.. Medium yellow square number one is below medium yellow square number two. Finally, below block B we have block C. It is above block A. It contains one medium black square.
Which object is below a medium yellow square? the medium black square which is in block A or the medium black square which is in block B?
the medium black square  which is in block A the medium black square  which is in block B both of them none of them