There exist three blocks, called AAA, BBB and CCC. A medium blue square is inside block AAA. Block BBB covers block AAA. A medium black square is covered by this block. Block CCC with two medium blue squares is behind, to the south of and disconnected from block BBB. Block BBB is away from this block. Block CCC covers another medium blue square. A medium yellow square is inside this block.
Are all medium blue squares disconnected from a shape?