/** A sentence makes sense by constructing the parts of it before the observer's senses. The two types of parts making up a shoe, the top and the bottom, are used, one after another (not simultaneously, even when walking, when the bottom is stepped on or the top is lifted up). sssfs sfffs sssss ggggg sssfs sfffs sssss ggggg foot (relative) lifts shoe (relative) when tied, stops when touches ground (absolute) **/