We have two blocks. We call them A and B. Block A is below B. Block A contains one medium yellow square. Block B has two medium yellow squares. Below a medium blue square is medium yellow square number one. It is below medium yellow square number two. It also contains one medium black square. The medium black square is below medium yellow square number one and medium yellow square number two. The medium blue square is below medium yellow square number two.
What is below the black shape? a medium yellow square or a medium blue square?
medium yellow square  medium blue square  both of them none of them