There are two blocks. We call them A and B. Block A is above B. Block A has two medium yellow squares. Medium yellow square number one is below medium yellow square number two. A medium blue square is below medium yellow square number one and medium yellow square number two. Block B has two medium yellow squares and two other medium black squares. Medium yellow square number one is touching the bottom edge of this block. Medium yellow square number two is below medium black square number two. Medium black square number one is below medium yellow square number two. Below medium black square number two , medium black square number one and medium yellow square number two is medium yellow square number one.
Which object is below a medium yellow 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