hako no naka ni atta no
hako no naka ni atta no ?
h a k o WORD_BOUNDARY n o WORD_BOUNDARY n a k a WORD_BOUNDARY n i WORD_BOUNDARY a t t a WORD_BOUNDARY n o WORD_BOUNDARY
h a k o WORD_BOUNDARY n o WORD_BOUNDARY n a k a WORD_BOUNDARY n i WORD_BOUNDARY a t t a WORD_BOUNDARY n o WORD_BOUNDARY