doko ni buubuu ga aru
doko ni buubuu ga aru .
d o k o WORD_BOUNDARY n i WORD_BOUNDARY b ɯː b ɯː WORD_BOUNDARY g a WORD_BOUNDARY a r ɯ WORD_BOUNDARY
d o k o WORD_BOUNDARY n i WORD_BOUNDARY b u u b u u WORD_BOUNDARY g a WORD_BOUNDARY a r u WORD_BOUNDARY