There are two blocks, A and B. Block A is above B. Block A has a medium blue triangle. Block B has a small yellow square, a small blue triangle and a medium black circle. The small blue triangle is below a medium yellow triangle. The medium black circle is to the left of a big black square. The big black square is touching the right edge of this block. The small blue triangle is touching the right edge of this block. The medium yellow triangle is near to, below and to the left of the big black square.
Which object is below a medium blue triangle? the big black square that is touching the right edge of a block or the medium yellow triangle?
the big black square  that is touching the right edge of  a block  the medium yellow triangle  both of them none of them