There are three blocks. We call them A, B and C. Block A contains one medium black square, a small black triangle and a big blue triangle. The medium black square is to the left of the small black triangle. Below the big blue triangle is the small black triangle. The medium black square is below the big blue triangle. Then, we have block B which has two medium black circles. There is also one medium blue triangle touching the right edge of this block. To the right of a small yellow triangle is a big yellow square. Medium black circle number one is to the right of and below the small yellow triangle. Below and to the left of the black shape which is to the right of the small yellow triangle is the big yellow square. Medium black circle number two is touching the bottom edge of this block. Below block A and to the right of block B there is block C which contains a big blue square.
What is below the big blue triangle? a big blue square or a medium black circle?
big blue square  medium black circle  both of them none of them