There are two blocks, A and B. Block A contains a small black triangle and one small yellow triangle. Above and to the right of the small yellow triangle is the small black triangle. To the left of block A we have block B with two small black triangles in it. Small black triangle number one is below small black triangle number two. It also has one medium black triangle. The medium black triangle is above a small yellow triangle and small black triangle number one. A small yellow square is touching the bottom edge of this block. The small yellow triangle is below and to the left of small black triangle number two.
Which object is to the left of a small black triangle? the medium black triangle or the small yellow square that is touching the bottom edge of a block?
the medium black triangle  the small yellow square  that is touching the bottom edge of a block  both of them none of them