We have two blocks, A and B. Block A has two medium black squares. Medium black square number one is below medium black square number two. Block B is below block A. It contains two medium blue squares. Medium blue square number one is below medium blue square number two and a medium black square. This shape is touching the bottom edge of this block. The medium black square is below medium blue square number two.
What is above the shape which is touching the bottom edge of a block? a medium black square number one or a medium black square number two?
medium black square  number one medium black square  number two both of them none of them