There are three blocks. We call them A, B and C. Block A contains a medium blue triangle. Block B is to the left of block A. It has a small blue circle, a small yellow circle and a big yellow square. To the left of the small yellow circle there is the small blue circle. Near to and below the big yellow square there is the small yellow circle. The big yellow square is touching the right edge of this block. Below block B there is block C which has one small blue triangle. This block also has a big yellow triangle. To the left of the big yellow triangle there is the small blue triangle.
What is to the left of the medium thing? a big yellow triangle or a small blue triangle?
big yellow triangle  small blue triangle  both of them none of them