There are three blocks. Lets call them A, B and C. There are one medium yellow triangle and one small black square in block A. The medium yellow triangle is to the right of the small black square. Above block A there is block B with a big black circle in it. Below block A there is block C. It contains a medium yellow circle, one big yellow circle and a medium yellow square. To the right of the big yellow circle and the medium yellow square is the medium yellow circle.
Which object is below a medium yellow thing? the big black circle or the big yellow circle?
the big black circle  the big yellow circle  both of them none of them