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