There are two blocks. We call them A and B. Block A is above B. Block A has two medium yellow squares. This block also has one medium black square. Medium yellow square number one is touching the bottom edge of this block. Below the medium black square there is medium yellow square number two. Below the square which is below the medium black square there is medium yellow square number one. It is below the medium black square. Block B contains a medium black square. A medium yellow square is touching the bottom edge of this block. It is below the medium black square.
Which object is above a medium yellow square? the medium black square that is in block A or the medium black square that is in block B?
the medium black square  that is in block A the medium black square  that is in block B both of them none of them