There are three blocks, A, B and C. Block C is above block A and to the left of block B. Block A has a medium yellow square. To the right of a big black square there is the medium yellow square. Block B has a small yellow square. And block C has one small black triangle, one medium blue triangle and a small yellow triangle. The small black triangle is above and to the left of the medium blue triangle. Above and near to the small yellow triangle is the medium blue triangle.
What is above the big thing? a medium yellow square or a small yellow triangle?
medium yellow square  small yellow triangle  both of them none of them