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