We have three blocks. We call them A, B and C. Block B is below C and block C is below A. Block A has a medium yellow square. This block also contains a medium blue triangle. The medium blue triangle is to the left of the medium yellow square. Block B contains one small blue triangle and one big yellow circle. Above the big yellow circle there is the small blue triangle. Block C contains one medium black triangle and one medium blue square. Below the medium blue square is the medium black triangle.
What is above the black object? a medium yellow square or a big shape?
medium yellow square  big shape both of them none of them