There are three blocks, A, B and C. Two medium yellow squares are in block A. Medium yellow square number one is below medium yellow square number two. Above block A there is block B. It contains two medium black squares. Medium black square number one is below medium black square number two. Below block A there is block C with a medium blue square in it.
Which object is below a medium black square? medium yellow square number two or medium yellow square number one?
medium yellow square  number two medium yellow square  number one both of them none of them