The "natural nourishment" granola bars manufactured by global good foods have been the top-selling granola bars in the market. Though the market for granola bars is flooded with competitors, global good has been able to maintain its market position for a long time. This is mainly attributed to the pleasant texture of its granola, which comes from a proprietary processing technique used by the company. This competency of global good foods will be considered as a(n) ________ resource in the vrio framework.