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