We have three blocks. Lets call them A, B and C. Block A has one big yellow triangle and a big yellow square. Below, touching and to the right of the big yellow square is the big yellow triangle. Block B is below block A. It contains one big black triangle. Below block A there is block C with one small yellow square, one big black square and a small blue square in it. This block also has a small yellow triangle. There is also a big blue triangle in this block. The small yellow triangle is to the right of and near to the big blue triangle. The big black square is to the right of the big blue triangle. The small blue square is above the big blue triangle. To the left of the blue shape which is above the big blue triangle is the small yellow square.
What is below the big yellow square? a big blue triangle or a big yellow triangle?
big blue triangle  big yellow triangle  both of them none of them