There are two blocks. We call them A and B. Three medium black squares are in block A. Medium black square number one is below medium black square number three and medium black square number two. Below medium black square number three there is medium black square number two. Block B is below block A. It 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? medium black square number one or medium black square number two?
medium black square  number one medium black square  number two both of them none of them