There are two blocks, A and B. A medium black square is in block A. Block B is below block A. It contains two small blue triangles. Small blue triangle number one is below small blue triangle number two. This shape is above a medium black triangle. A medium yellow square is to the left of the medium black triangle. It is to the right of and below small blue triangle number one.
What is below the medium black square? a medium black triangle or a yellow object?
medium black triangle  yellow object both of them none of them