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