We have two blocks. We call them A and B. Block A is below B. Block A contains two medium blue squares. Below medium blue square number two there is medium blue square number one. Block B contains one medium black square and one medium yellow square. One medium blue square is also in this block. The medium black square is touching the bottom edge of this block. It is below the medium yellow square and the medium blue square. Below the medium blue square is the medium yellow square.
What is above the black shape? a medium yellow square or a medium blue square?
medium yellow square  medium blue square  both of them none of them