dakara appu wa iranai kara
dakara appu wa iranai kara .
d a k a r a WORD_BOUNDARY a p p ɯ WORD_BOUNDARY w a WORD_BOUNDARY i r a n a i WORD_BOUNDARY k a r a WORD_BOUNDARY
d a k a r a WORD_BOUNDARY a p p u WORD_BOUNDARY w a WORD_BOUNDARY i r a n a i WORD_BOUNDARY k a r a WORD_BOUNDARY