We have three blocks. Lets call them A, B and C. Block A is to the right of B. Block B is to the left of C. Block A has one medium blue triangle and a big black triangle. To the right of the big black triangle is the medium blue triangle. Block B contains two big black circles. Big black circle number one is touching the bottom edge of this block. Big black circle number two is to the left of a small black circle. This block also contains one small yellow circle. Below big black circle number two there is the small yellow circle. A small blue circle is touching the right edge of this block. The small black circle is touching the bottom edge of this block. To the left of the small blue circle which is above the small black circle is the small yellow circle. To the left of the small black circle there is big black circle number one. And block C contains one medium black triangle and a big yellow circle. The medium black triangle is above the big yellow circle.
What is to the left of the big yellow circle? a medium black triangle or a big black circle?
medium black triangle  big black circle  both of them none of them