kore ga eki na no ka
kore ga eki na no ka ?
k o r e WORD_BOUNDARY g a WORD_BOUNDARY e k i WORD_BOUNDARY n a WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY
k o r e WORD_BOUNDARY g a WORD_BOUNDARY e k i WORD_BOUNDARY n a WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY