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