Three blocks, named AAA, BBB and CCC exist. Two medium blue squares are in block AAA. Block AAA covers a medium black square which are to the south of two medium blue squares. To the north of medium blue square number two is medium blue square number one. Block BBB covers block AAA. This block covers a medium yellow square. This block is inside block CCC. To the south of a medium yellow square there is a medium black square. The medium black square is within block CCC. Block CCC has the medium yellow square. This block covers a medium blue square and contains another medium yellow square. To the south of medium yellow square number two there is the medium blue square.
What is the position of medium blue square number two relative to the medium black square covered by AAA?