We have two blocks. Lets call them A and B. There are two medium black squares in block A. Medium black square number one is touching the bottom edge of this block. Below a medium blue square there is medium black square number two. Medium black square number one is below the medium blue square and medium black square number two. Block B is below block A. It has a medium black square and one medium yellow square. The medium black square is below the medium yellow square.
What is below the yellow object? a medium black square that is in block B or a medium black square number two?
medium black square  that is in block B medium black square  number two both of them none of them