There are two blocks, A and B. There is one big yellow circle in block A. One medium yellow square is also in this block. This block also has a small yellow square. The big yellow circle is to the right of the small yellow square. The medium yellow square is to the right of the small yellow square and the big yellow circle. Block B is above block A. It contains one medium yellow square. The medium yellow square is touching the bottom edge of this block. It is below a small black triangle.
What is below the black thing? a small yellow square or a medium yellow square which is touching the bottom edge of a block?
small yellow square  medium yellow square  which is touching the bottom edge of a block  both of them none of them