We have three blocks, A, B and C. Block A is to the left of C. Block C is below B. Block A has a big black triangle. Block B contains one big blue circle. And block C contains one medium black square, one small yellow triangle and a big black circle. The medium black square is below the big black circle and a big yellow circle. The small yellow triangle is below the big black circle. The big yellow circle is to the right of the big black circle.
What is to the right of the big black triangle? a big yellow circle or a big black circle?
big yellow circle  big black circle  both of them none of them