un vaso o un brazo
un vaso o un brazo ?
u n WORD_BOUNDARY β a s o̞ WORD_BOUNDARY o̞ WORD_BOUNDARY u n WORD_BOUNDARY β ɾ a s o̞ WORD_BOUNDARY
u n WORD_BOUNDARY v a s o WORD_BOUNDARY o WORD_BOUNDARY u n WORD_BOUNDARY b r a z o WORD_BOUNDARY ? WORD_BOUNDARY