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