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