hanabira wakannai no ka
hanabira wakannai no ka ?
h a n a b i r a WORD_BOUNDARY w a k a n n a i WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY
h a n a b i r a WORD_BOUNDARY w a k a n n a i WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY