We have two blocks, A and B. Block A contains a small black square. Above block A there is block B which contains one small yellow square, one big yellow circle and a medium black triangle. The small yellow square is above the big yellow circle which is below the medium black triangle. It is to the left of and near to the medium black triangle. This block also has a big black triangle. It is to the left of the big yellow circle and the medium black triangle.
Which object is above a small black square? the small yellow square or the big black triangle?
the small yellow square  the big black triangle  both of them none of them