There are two blocks, A and B. Block A contains a small blue triangle, a medium yellow triangle and one big black triangle. There is also one medium yellow square touching the bottom edge of this block. It also has a small black square. The small blue triangle is to the right of the medium yellow triangle. The medium yellow triangle is above the medium yellow square and the small black square. It is near to the big black triangle. Below the small black square is the medium yellow square. Below block A there is block B with a small black square in it. It also has a small yellow triangle. The small yellow triangle is below the small black square.
What is above the small yellow triangle? a small blue triangle or a small black square?
small blue triangle  small black square  both of them none of them