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