There are two blocks, A and B. Block A has two medium black squares. Medium black square number one is touching the bottom edge of this block. It is below medium black square number two. Below block A we have block B which contains a medium yellow square and one medium blue square. There is also a medium black square touching the bottom edge of this block. The medium black square is below the medium yellow square and the medium blue square. Below the medium blue square is the medium yellow square.
Which object is below a medium black square? the medium yellow square or the blue object?
the medium yellow square  the blue object both of them none of them