We have three blocks. We call them A, B and C. There are two medium black squares in block A. Below a medium yellow square and medium black square number two is medium black square number one. The medium yellow square is below medium black square number two. Block B is above block A. It has a medium black square. Finally, we have block C which is to the right of block A. It contains a medium blue square.
What is to the left of the blue 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