dakara nani ga nai no
dakara nani ga nai no ?
d a k a r a WORD_BOUNDARY n a n i WORD_BOUNDARY g a WORD_BOUNDARY n a i WORD_BOUNDARY n o WORD_BOUNDARY
d a k a r a WORD_BOUNDARY n a n i WORD_BOUNDARY g a WORD_BOUNDARY n a i WORD_BOUNDARY n o WORD_BOUNDARY