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