There are two blocks. Lets call them A and B. Block A is to the left of B. Block A has a big black circle, one medium yellow circle and one medium blue triangle. There is also one small blue square in this block. The big black circle is touching the bottom edge of this block. To the right of and touching the small blue square there is the medium yellow circle. It is below the medium blue triangle. The big black circle is below the medium yellow circle and the medium blue triangle. Block B contains a big yellow circle.
What is touching the blue square? a medium yellow circle or a big yellow circle?
medium yellow circle  big yellow circle  both of them none of them