un koko ni natteru n da
un koko ni natteru n da .
ɯ n WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY n a t t e r ɯ WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY
u n WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY n a t t e r u WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY