There are three blocks. Lets call them A, B and C. There is one big black square in block A. A medium black triangle is touching the right edge of this block. It is above and to the right of the big black square. Then, we have block B with a big yellow square in it. It also contains a small blue square. This block also contains a small yellow square.. To the right of the small yellow square is the big yellow square. It is below and to the left of the small blue square. Block C is above both blocks A and B. It has a big yellow triangle.
What is to the left of the blue thing? a big yellow triangle or a small yellow square?
big yellow triangle  small yellow square  both of them none of them