We have two blocks, A and B. Block A is below B. Block A contains a big black triangle. Block B has one big black triangle, one medium black triangle and a medium blue square. There is also one small blue square in this block. It also contains one small yellow triangle. It is to the right of and below the small blue square. The medium black triangle is touching the right edge of this block. To the right of the medium blue square and the small blue square there is the big black triangle.
Which object is above a big black triangle? the small blue square or the medium blue square?
the small blue square  the medium blue square  both of them none of them