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