sentences:  Notice how the purplish complex object is completely surrounded by the blueish complex object.The inner objects are completely surrounded in the space created by the outer objects.The blueish object seems to surround the simple gray object in the center, but is unable to completely do so, and the gray/beige object is either directly attached and is completely surrounded by the space associated with the outer black boundary wall that surrounds the whole “maze.” Taking away or adding the blue and purple areas makes no difference to the relationship between the inner gray/beige object and the outer black boundary line, as the space between them is still connected.