We have two blocks, A and B. Block A has three medium black squares. Medium black square number one is below medium black square number two which is below medium black square number three. There is also one medium yellow square touching the bottom edge of this block. The medium yellow square is below medium black square number three , medium black square number one and medium black square number two. To the left of block A there is block B which has one medium black square.
What is above the yellow thing? a medium black square which is in block B or a medium black square number two?
medium black square  which is in block B medium black square  number two both of them none of them