koko itai koko itai koko itai
koko itai koko itai koko itai ?
k o k o WORD_BOUNDARY i t a i WORD_BOUNDARY k o k o WORD_BOUNDARY i t a i WORD_BOUNDARY k o k o WORD_BOUNDARY i t a i WORD_BOUNDARY
k o k o WORD_BOUNDARY i t a i WORD_BOUNDARY k o k o WORD_BOUNDARY i t a i WORD_BOUNDARY k o k o WORD_BOUNDARY i t a i WORD_BOUNDARY