We have two blocks, A and B. Block A has one big yellow triangle, a medium black triangle and a medium blue triangle. To the right of the medium black triangle which is to the left of the medium blue triangle there is the big yellow triangle. The medium blue triangle is touching the right edge of this block. The big yellow triangle is touching the bottom edge of this block. This object is below the medium blue triangle. Block B is below block A. It has two big blue triangles. To the right of and below big blue triangle number two is big blue triangle number one.
What is to the left of the medium blue triangle? a medium black triangle or a yellow thing which is touching the bottom edge of a block?
medium black triangle  yellow thing which is touching the bottom edge of a block  both of them none of them