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