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