There are two blocks, A and B. Block A has one small black circle, one big black triangle and one small blue circle. A small yellow triangle is below the big black triangle. To the left of the small yellow triangle and the big black triangle there is the small black circle. It is to the right of the small blue circle. Block B is below block A. It contains a medium yellow triangle. A small yellow circle and one big blue circle are also in this block. Near to, below and to the left of the big blue circle there is the small yellow circle. Below the big blue circle there is the medium yellow triangle.
What is below the big black triangle? a big blue circle or a small blue circle?
big blue circle  small blue circle  both of them none of them