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