There are two blocks, A and B. Three medium yellow squares are in block A. This block also has a medium black square. Below the medium black square , medium yellow square number two and medium yellow square number three there is medium yellow square number one. Medium yellow square number two is below medium yellow square number three which is below the medium black square. To the right of block A there is block B. It contains a medium black square.
Which object is to the left of a medium black square? medium yellow square number two or medium yellow square number three?
medium yellow square  number two medium yellow square  number three both of them none of them