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