There are three blocks. We call them A, B and C. There is a medium black square in block A. Below the medium black square is a medium blue square. To the right of block A there is block B with one medium black square and a medium blue square in it. Below the medium blue square there is the medium black square. To the right of block B there is block C. It has a medium black square.
Which object is to the left of a medium black square? the medium blue square that is in block B or the medium blue square that is in block A?
the medium blue square  that is in block B the medium blue square  that is in block A both of them none of them