We have three blocks, A, B and C. Block B is below A and block C is to the left of B. Block A has a small yellow square and one big black triangle. The small yellow square is touching the top edge of this block. It is far from the big black triangle. Block B contains a big black square. Block C has a medium yellow triangle and one big black square. Below, near to and to the right of a small black circle there is the medium yellow triangle. Below and near to the big black square is the small black circle.
Which object is above a big black square? the medium yellow triangle or the big black triangle?
the medium yellow triangle  the big black triangle  both of them none of them