Theories of stress assignment commonly assume that syllable onsets do not determine a syllable's ability to attract stress. In the frameworks of McCarthy (1979) and Hayes (1981, 1995), for example, only the rhyme is projected in order to determine the weight of a syllable. In Moraic Theory (Hyman 1985), onsets do not contribute to the weight of a syllable as a consequence of the Onset Creation rule, by which onsets lose their weightbearing unit. In the framework of Hayes (1989), the rule of Weight-by-Position ensures that only coda consonants can ever be weight-bearing.