We have three blocks. Lets call them A, B and C. Block A has a medium black square. To the right of block A there is block B with one medium blue square, one medium yellow square and one medium black square in it. Below the medium black square is the medium yellow square. The medium blue square is touching the bottom edge of this block. This object is below the medium yellow square. It is below the medium black square. To the right of block B there is block C which has one medium yellow square.
Which object is to the left of a medium yellow square? the medium black square that is in block A or the medium black square that is in block B?
the medium black square  that is in block A the medium black square  that is in block B both of them none of them