We have three blocks. We call them A, B and C. Block C is to the left of B. Block A is above C. Block A contains two small yellow squares. A small blue circle is also in this block. A medium black square is touching the right edge of this block. It is to the right of small yellow square number two. The small blue circle is above the medium black square , small yellow square number one and small yellow square number two. Small yellow square number one is above small yellow square number two. Block B contains a big black circle. And block C has a medium yellow circle.
What is above the medium yellow circle? a big black circle or a small yellow square?
big black circle  small yellow square  both of them none of them