We have three blocks. Lets call them A, B and C. Block A has a medium black square and a medium blue square. The medium black square is below the medium blue square. Then, there is block B which contains one medium yellow square. Finally, we have block C. It is above block B and block A is above it. It contains two medium black squares. Below medium black square number two there is medium black square number one.
What is below the blue shape? a medium yellow square or a medium black square?
medium yellow square  medium black square  both of them none of them