One block called AAA exists in the image. This block covers a medium yellow square. Two medium black squares and another medium yellow square are within this block. Medium black square number one is to the north of medium black square number two. South of and touches medium black square number two there is medium yellow square number two. To the south of this thing there is medium yellow square number one. South of medium black square number one is the object which touches medium black square number two. To the north of the object that was south of medium yellow square number two there is medium black square number two.
Is any medium black square north of a medium square?