posa'l be posa'l be
posa'l be posa'l be .
p ʊ z a l WORD_BOUNDARY β ɛ WORD_BOUNDARY p ʊ z a l WORD_BOUNDARY β ɛ WORD_BOUNDARY
p o s a ' l WORD_BOUNDARY b e WORD_BOUNDARY p o s a ' l WORD_BOUNDARY b e WORD_BOUNDARY