directives -> namespace ; taste -> the 5 tastes , roles of the 5 tastes ; the 5 tastes -> sweet <5zco4DR2>, sour <7cjxevmF>, salty , bitter , umami <9SPRKYeH>; roles of the 5 tastes [https://www.ajinomoto.com/aboutus/umami/why-is-umami-important-to-us] -> SWEET \- to ensure adequate intake of carbs for energy , UMAMI \- to ensure adequate intake of proteins for growth and maintenance of the body , SALTY \- to ensure adequate intake of salt to regulate the water in the body , SOUR \- to prevent intake of toxic substances and to detect ripeness , BITTER \- to prevent intake of poisonous substances ;