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