We have three blocks. We call them A, B and C. Block C is above A and block B is below C. Block A contains a medium blue square. Block B has a medium yellow square. And block C contains two medium yellow squares. One medium black square is also in this block. Medium yellow square number one is touching the bottom edge of this block. Medium yellow square number two is below the medium black square. Below medium yellow square number two and the medium black square there is medium yellow square number one.
Which object is above a medium yellow square? the medium yellow square that is touching the bottom edge of a block or the black object?
the medium yellow square  that is touching the bottom edge of a block  the black object both of them none of them