There are two blocks. We call them A and B. One medium blue circle and one big yellow triangle are in block A. The big yellow triangle is touching the right edge of this block. This block also has a medium blue triangle. Above and to the left of the big yellow triangle which is above the medium blue triangle is the medium blue circle. Below block A there is block B which has a big yellow circle. Below and touching the big yellow circle is a big blue circle.
What is below the big yellow circle? a big blue circle or a medium blue triangle?
big blue circle  medium blue triangle  both of them none of them