We have two blocks. Lets call them A and B. A big yellow square, a medium yellow triangle and a small yellow triangle are in block A. This block also contains one big blue triangle. Above the small yellow triangle and the medium yellow triangle is the big yellow square. The medium yellow triangle is touching the right edge of this block. Near to a big black square is the small yellow triangle. The big black square is touching the bottom edge of this block. To the right of the big black square there is the medium yellow triangle. It is below the big blue triangle. Block B is below block A. It has one big black triangle and one small yellow triangle. The big black triangle is touching the bottom edge of this block. It is below and to the right of the small yellow triangle.
What is below the medium shape? a big black square or a big black triangle?
big black square  big black triangle  both of them none of them