Mama tte koko ni iru
mama tte koko ni iru .
m a m a WORD_BOUNDARY t t e WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY i r ɯ WORD_BOUNDARY
m a m a WORD_BOUNDARY t t e WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY i r u WORD_BOUNDARY