Solution:In lexical morphology/lexical phonology, a key assumption is that each stratum within the lexical hierarchy is associated with a set of affixes sharing various phonological and morphological properties, and that the output of each stratum is a word. This theory segments the lexicon into distinct layers or strata, where different morphological processes occur. Each layer operates under specific phonological and morphological rules that apply to the affixes and bases present at that level. The output of each stratum, having undergone these specific processes, results in complete words, ready for use in speech or writing. This structured approach highlights how complex words are formed systematically, integrating morphological and phonological features at various stages of word formation.