There are two blocks, A and B. There are a small black square, a medium blue square and a small blue square in block A. It also contains one big yellow square. To the left of and above the medium blue square is the small black square. The medium blue square is touching the bottom edge of this block.. The big yellow square is to the right of the small blue square and the small black square. Above block A we have block B with one big black square in it.
What is below the big black square? a medium thing which is touching the bottom edge of a block or a small black square?
medium thing which is touching the bottom edge of a block  small black square  both of them none of them