The grammar adjfunction.grm covers adjective phrases like "very large" and "even much larger", which specify sizes of things, and adjectives like "sufficient", "insufficient", "similar", "comparable" and "different".  The phrase types defined in this module are used in quantity-np.grm, where they are used to modify nouns like "amount", "number" and "quantity" in noun phrases like "a very large quantity", "a small number", "a sufficient amount", and "a different quantity".   They are also used in adj-descr-p.grm as general adjectives describing sizes,  similarities, and sufficiencies of objects.