ippai nai to kaenai wa
ippai nai to kaenai wa .
i p p a i WORD_BOUNDARY n a i WORD_BOUNDARY t o WORD_BOUNDARY k a e n a i WORD_BOUNDARY w a WORD_BOUNDARY
i p p a i WORD_BOUNDARY n a i WORD_BOUNDARY t o WORD_BOUNDARY k a e n a i WORD_BOUNDARY w a WORD_BOUNDARY