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