Two blocks, called AAA and BBB exist. Block AAA covers a medium blue square and contains a medium yellow square. North of the medium blue square is the medium yellow square. The medium blue square touches this shape. Behind and disconnected from block AAA is block BBB. A medium blue square is in and a medium yellow square is covered by this block. To the north of the medium yellow square is the medium blue square.
Where is BBB regarding the medium yellow square in AAA?