We have three blocks, A, B and C. Block C is above B and block B is to the left of A. Block A contains a small black square. Block B contains one big black triangle, one big yellow circle and a big yellow triangle. This block also has a big blue circle. To the left of and above a medium yellow circle is a small blue circle. The big yellow triangle is touching the right edge of this block. The medium yellow circle is touching the right edge of this block. The big blue circle is touching the bottom edge of this block. Below, near to and to the left of the big yellow circle there is the big black triangle. And block C has one medium yellow triangle.
What is below the medium yellow triangle? a big yellow triangle or a big black triangle?
big yellow triangle  big black triangle  both of them none of them