We have three blocks, A, B and C. One big blue circle is in block A. Then, we have block B. It contains a big blue square, a small black circle and one small yellow square. Below the small yellow square and the small black circle there is the big blue square. The small black circle is above the small yellow square. Finally, above block A we have block C. It is above block B. It contains one big yellow circle.
What is below the big yellow circle? a big blue square or a small yellow square?
big blue square  small yellow square  both of them none of them