There are two blocks, A and B. Block A has a medium blue triangle and a big yellow triangle. The medium blue triangle is touching the bottom edge of this block. It is below the big yellow triangle. Block B is above block A. It contains one small yellow square, one big blue triangle and one small blue circle. To the left of and below the small blue circle is the big blue triangle. To the left of the small blue circle there is a big black triangle. To the right of and above the black shape which is to the left of the small blue circle is the small yellow square. The big blue triangle is touching the bottom edge of this block. The small blue circle is touching the right edge of this block. The small yellow square is near to the small blue circle.
What is below the small blue thing? a big yellow triangle or a big black triangle?
big yellow triangle  big black triangle  both of them none of them