two three four five six
two three four five six .
t w o̞ WORD_BOUNDARY t ɾ e̞ e̞ WORD_BOUNDARY f o̞ u ɾ WORD_BOUNDARY f i β e̞ WORD_BOUNDARY s i k s WORD_BOUNDARY
t w o WORD_BOUNDARY t h r e e WORD_BOUNDARY f o u r WORD_BOUNDARY f i v e WORD_BOUNDARY s i x WORD_BOUNDARY . WORD_BOUNDARY