kore dareka otta no ka
kore dareka otta no ka ?
k o r e WORD_BOUNDARY d a r e k a WORD_BOUNDARY o t t a WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY
k o r e WORD_BOUNDARY d a r e k a WORD_BOUNDARY o t t a WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY