There are three blocks. Lets call them A, B and C. There are a big blue triangle, one medium yellow square and one medium black square in block A. Above the medium black square and a medium black circle there is the big blue triangle. The medium yellow square is above the medium black circle. To the right of the medium black circle is the medium black square. Then, we have block B which has one big yellow circle. Above block B and below block A there is block C with a medium black triangle in it.
Which object is above a medium black triangle? the medium yellow square or the big yellow circle?
the medium yellow square  the big yellow circle  both of them none of them