We have three blocks. Lets call them A, B and C. Blocks B and A are below C. Block A contains a medium black square. Block B has two medium black squares. Below a medium yellow square and medium black square number two is medium black square number one. The medium yellow square is below medium black square number two. And block C has a medium black square.
Which object is below a medium black square? medium black square number two or the medium black square which is in block A?
medium black square  number two the medium black square  which is in block A both of them none of them