koko wa oto ga hairu
koko wa oto ga hairu .
k o k o WORD_BOUNDARY w a WORD_BOUNDARY o t o WORD_BOUNDARY g a WORD_BOUNDARY h a i r ɯ WORD_BOUNDARY
k o k o WORD_BOUNDARY w a WORD_BOUNDARY o t o WORD_BOUNDARY g a WORD_BOUNDARY h a i r u WORD_BOUNDARY