There are three blocks. Lets call them A, B and C. Block A is below C and block C is below B. Block A has a medium black square. This block also has one medium blue square. Below the medium black square is the medium blue square. Block B contains one medium blue square and one medium yellow square. Below the medium yellow square is the medium blue square. Block C has two medium black squares. Below medium black square number two there is medium black square number one.
What is above the object that is touching the bottom edge of a block? a medium black square or a yellow shape?
medium black square  yellow shape both of them none of them