We have three blocks. Lets call them A, B and C. Block A has a medium black square. It also has one medium blue square. The medium blue square is below the medium black square. Then, there is block B. It has one medium black square. Finally, below block A we have block C. It is to the right of block B. It contains a medium blue square and one medium black square. Below the medium black square there is the medium blue square.
Which object is to the left of a medium black square? the medium black square that is in block B or the medium black square that is in block A?
the medium black square  that is in block B the medium black square  that is in block A both of them none of them