kono naka ni mo nai
kono naka ni mo nai ?
k o n o WORD_BOUNDARY n a k a WORD_BOUNDARY n i WORD_BOUNDARY m o WORD_BOUNDARY n a i WORD_BOUNDARY
k o n o WORD_BOUNDARY n a k a WORD_BOUNDARY n i WORD_BOUNDARY m o WORD_BOUNDARY n a i WORD_BOUNDARY