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