We have two blocks, A and B. Block A has two medium blue squares. Medium blue square number one is below medium blue square number two. Block B is above block A. It contains two medium black squares. Medium black square number one is touching the bottom edge of this block. Below a medium yellow square there is medium black square number two. Medium black square number one is below the medium yellow square and medium black square number two.
Which object is below a medium black square? the medium yellow square or the black thing that is touching the bottom edge of a block?
the medium yellow square  the black thing that is touching the bottom edge of a block  both of them none of them