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