There are three blocks. Lets call them A, B and C. There is one medium yellow square in block A. One medium black square is also in this block. The medium black square is below the medium yellow square. Block B is to the left of block A. It has a medium blue square. There is also one medium black square in this block. Below the medium blue square there is the medium black square. Finally, we have block C. It is to the left of block A. It has one medium black square.
Which object is to the left of a medium black square? the yellow thing or the medium blue square?
the yellow thing the medium blue square  both of them none of them