We have three blocks. Lets call them A, B and C. Block A contains two medium black squares. It also has a medium yellow square. Below medium black square number two there is the medium yellow square. It is below medium black square number one. Below medium black square number two there is medium black square number one. Below block A is block B. It has a medium yellow square and one medium black square. It also has one medium blue square. Below the medium blue square and the medium black square there is the medium yellow square. The medium black square is below the medium blue square. Finally, we have block C to the right of block B. It has one medium black square and one medium blue square. The medium black square is below the medium blue square.
Which object is to the left of a medium blue 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