ara ara nani o motte kaetta no
ara ara nani o motte kaetta no ?
a r a WORD_BOUNDARY a r a WORD_BOUNDARY n a n i WORD_BOUNDARY o WORD_BOUNDARY m o t t e WORD_BOUNDARY k a e t t a WORD_BOUNDARY n o WORD_BOUNDARY
a r a WORD_BOUNDARY a r a WORD_BOUNDARY n a n i WORD_BOUNDARY o WORD_BOUNDARY m o t t e WORD_BOUNDARY k a e t t a WORD_BOUNDARY n o WORD_BOUNDARY