There are three blocks. Lets call them A, B and C. Block A has two medium black squares. Medium black square number one is below medium black square number two. Below block A is block B. It contains one medium black square. The medium black square is below a medium yellow square. Finally, there is block C to the right of block A. It has two medium black squares. Medium black square number one is below medium black square number two.
What is above the yellow object? a medium black square which is in block B or a medium black square number two?
medium black square  which is in block B medium black square  number two both of them none of them