There are three blocks. Lets call them A, B and C. Block B is above blocks C and A. Block A contains a big blue triangle, one small blue square and a big yellow triangle. A medium black circle is touching the right edge of this block. The small blue square is below the medium black circle. The big blue triangle is touching the bottom edge of this block. Below the medium black circle is the big yellow triangle. The big blue triangle is below the medium black circle and the small blue square. Block B contains a big black square and one small yellow circle. Above and near to the small yellow circle there is the big black square. Block C has two small yellow triangles. It also contains a small blue square. A small yellow square is also in this block. The small yellow square is above and to the right of small yellow triangle number two which is below the small blue square. Small yellow triangle number one is to the left of the small blue square. It is above the yellow shape which is below the small blue square.
What is below the small yellow circle? a big black square or a small yellow triangle?
big black square  small yellow triangle  both of them none of them