There are three blocks. Lets call them A, B and C. Block B is below C and block C is to the left of A. Block A has two medium black squares. Medium black square number one is touching the bottom edge of this block. This object is below medium black square number two. Block B has one medium blue square. A medium yellow square and one medium black square are also in this block. The medium blue square is below the medium yellow square which is below the medium black square. It is below the medium black square. Block C has a medium yellow square.
Which object is below a medium yellow square? the medium black square which is in block B or the medium black square which is touching the bottom edge of a block?
the medium black square  which is in block B the medium black square  which is touching the bottom edge of a block  both of them none of them