There are three blocks. Lets call them A, B and C. Block A is to the left of block C and above block B. Block A has a medium yellow square, a medium black square and a medium blue square. The medium yellow square is below the medium blue square and the medium black square. Below the medium blue square there is the medium black square. Block B contains one medium black square. And block C has one medium yellow square.
Which object is to the left of a medium yellow square? the medium black square that is in block A or the medium black square that is in block B?
the medium black square  that is in block A the medium black square  that is in block B both of them none of them