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