bumbumbumbubun tte yatte iru
bumbumbumbubun tte yatte iru .
b ɯ m b ɯ m b ɯ m b ɯ b ɯ n WORD_BOUNDARY t t e WORD_BOUNDARY j a t t e WORD_BOUNDARY i r ɯ WORD_BOUNDARY
b u m b u m b u m b u b u n WORD_BOUNDARY t t e WORD_BOUNDARY y a t t e WORD_BOUNDARY i r u WORD_BOUNDARY