We have three blocks. Lets call them A, B and C. Block C is to the left of B and block B is above A. Block A has one big blue triangle and a big black triangle. The big blue triangle is touching the right edge of this block. It is above the big black triangle. Block B has a medium yellow circle and a medium blue circle. This block also has a medium black triangle. Near to and below the medium black triangle is the medium blue circle. Below and to the right of the medium blue circle there is the medium yellow circle. And block C has one big black circle.
What is below the medium black triangle? a medium blue circle or a big black circle?
medium blue circle  big black circle  both of them none of them