There are two blocks. Lets call them A and B. One medium yellow circle, one big blue triangle and a small blue square are in block A. Above the medium yellow circle which is above the big blue triangle there is a big yellow triangle. This block also has a big black triangle. A medium blue triangle is above the big blue triangle.. The big blue triangle is below and to the left of the small blue square. Block B is above block A. It contains one big black triangle and one medium black circle. This block also contains a big black square. To the right of the big black square and the medium black circle there is the big black triangle. It also contains one medium yellow square. The medium yellow square is above, touching and to the right of the medium black circle.
What is above the big yellow triangle? a big blue triangle or a medium black circle?
big blue triangle  medium black circle  both of them none of them