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