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