We have three blocks, A, B and C. One small blue circle is in block A. Below block A we have block B with one medium black triangle, one medium blue square and a big black triangle in it. It also contains one big blue square. There is also one big yellow square in this block. To the left of the big yellow square is the medium black triangle. Below the big blue square and the big yellow square there is the big black triangle. It is touching the bottom edge of this block. The medium black triangle is to the right of the big blue square. It is above the medium blue square. Finally, we have block C above block B. It has a medium blue square, a medium blue triangle and one medium yellow triangle. The medium blue square is below a small yellow triangle. Near to the medium yellow triangle and the small yellow triangle there is the medium blue triangle.
What is below the medium yellow triangle? a big yellow square or a medium blue triangle?
big yellow square  medium blue triangle  both of them none of them