nani itteru no ka wakaranai
nani itteru no ka wakaranai .
n a n i WORD_BOUNDARY i t t e r ɯ WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY w a k a r a n a i WORD_BOUNDARY
n a n i WORD_BOUNDARY i t t e r u WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY w a k a r a n a i WORD_BOUNDARY