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