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