There are two blocks, A and B. A medium blue square is in block A. Block B is to the left of block A. It contains two medium black squares. This block also contains one medium blue square. There is also one medium yellow square in this block. Below medium black square number two and the medium yellow square is medium black square number one. Medium black square number two is below the medium yellow square and the medium blue square. Below the medium yellow square is the medium blue square.
Which object is to the left of a medium blue square? medium black square number two or medium black square number one?
medium black square  number two medium black square  number one both of them none of them