nani o itteru n da
nani o itteru n da .
n a n i WORD_BOUNDARY o WORD_BOUNDARY i t t e r ɯ WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY
n a n i WORD_BOUNDARY o WORD_BOUNDARY i t t e r u WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY