Provided is a composition comprising an alkali metal glycerate or an alkaline earth metal glycerate and glycerol, and a method for preparing the same. The instruction compressing apparatus includes a bundle code generating unit, an instruction compressing unit, and an instruction converting unit. The effective width of the distribution is the difference between the distribution’s d95 and d5 particle sizes. The cover member comprises, for example, pressure-sensitive or temperature-activated tape, reject dies, or the like.