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