nan tte kaite aru ka wakaru
nan tte kaite aru ka wakaru ?
n a n WORD_BOUNDARY t t e WORD_BOUNDARY k a i t e WORD_BOUNDARY a r ɯ WORD_BOUNDARY k a WORD_BOUNDARY w a k a r ɯ WORD_BOUNDARY
n a n WORD_BOUNDARY t t e WORD_BOUNDARY k a i t e WORD_BOUNDARY a r u WORD_BOUNDARY k a WORD_BOUNDARY w a k a r u WORD_BOUNDARY