We have three blocks, A, B and C. Block A contains two medium black squares. Below medium black square number two there is medium black square number one. Above block A there is block B. It has a medium black square. This block also has a medium blue square. The medium black square is touching the bottom edge of this block. It is below the medium blue square. Above block B there is block C with one medium black square in it.
Which object is below a medium black square? medium black square number two or the thing which is touching the bottom edge of a block?
medium black square  number two the thing which is touching the bottom edge of a block  both of them none of them