A medium black square is inside and touching a block named AAA. This thing is below a medium blue square. The medium blue square touches a medium yellow object. Below and touches the medium yellow object is the medium black square. Block AAA has the blue object. This block contains the medium yellow object. This block contains another medium black square. Under the medium blue square is the yellow thing. Above the medium blue square is medium black square number two.
Is a square within all blocks?