oto ga kawaru n da ne
oto ga kawaru n da ne .
o t o WORD_BOUNDARY g a WORD_BOUNDARY k a w a r ɯ WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY n e WORD_BOUNDARY
o t o WORD_BOUNDARY g a WORD_BOUNDARY k a w a r u WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY n e WORD_BOUNDARY