Two blocks, named AAA and BBB exist. Block BBB is disconnected from block AAA. South of this block there is block AAA with a medium yellow square and a medium blue square. A medium black square is inside and touching and another medium yellow square is in block AAA. The blue shape and medium yellow square number one are to the north of medium yellow square number two. To the south of the blue object there is medium yellow square number one. A medium black square is within and another medium black square is covered by block BBB. Block BBB has another medium black square. North of medium black square number two there is medium black square number one. North of this shape there is medium black square number three.
Are all medium black squares disconnected from a block?