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