There are two blocks. Lets call them A and B. One medium black square, a medium yellow square and a medium blue square are in block A. The medium black square is below the medium blue square and the medium yellow square. The medium yellow square is below the medium blue square. Above block A we have block B which has two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. This shape is below medium yellow square number two.
Which object is below a medium yellow square? the shape which is touching the bottom edge of a block or the blue thing?
the shape which is touching the bottom edge of a block  the blue thing both of them none of them