This a a pair of categories, where one is the opposite of the other. For instance the category ''sweetened beverages'' is opposite to the the ''unsweetened beverages''. Both can not be true at the same time.
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This a a pair of categories, where one is the opposite of the other. For instance the category ''sweetened beverages'' is opposite to the the ''unsweetened beverages''. Both can not be true at the same time. However there will always be a unknown variant as well, die to lack of information;