oto ga kikoenaku naru kara ne
oto ga kikoenaku naru kara ne .
o t o WORD_BOUNDARY g a WORD_BOUNDARY k i k o e n a k ɯ WORD_BOUNDARY n a r ɯ WORD_BOUNDARY k a r a WORD_BOUNDARY n e WORD_BOUNDARY
o t o WORD_BOUNDARY g a WORD_BOUNDARY k i k o e n a k u WORD_BOUNDARY n a r u WORD_BOUNDARY k a r a WORD_BOUNDARY n e WORD_BOUNDARY