There are two blocks. We call them A and B. There is a medium blue circle in block A. One big yellow square is also touching the bottom edge of this block. Below and to the right of the medium blue circle there is the big yellow square. To the left of block A there is block B with a medium blue square in it. A medium black triangle is touching the bottom edge of this block. This block also has a small blue triangle. Below the medium blue square and the small blue triangle is the medium black triangle. The medium blue square is to the left of the small blue triangle.
What is to the left of the yellow square? a circle or a medium black triangle that is touching the bottom edge of a block?
circle  medium black triangle  that is touching the bottom edge of a block  both of them none of them