kore wa tobenai no da
kore wa tobenai no da .
k o r e WORD_BOUNDARY w a WORD_BOUNDARY t o b e n a i WORD_BOUNDARY n o WORD_BOUNDARY d a WORD_BOUNDARY
k o r e WORD_BOUNDARY w a WORD_BOUNDARY t o b e n a i WORD_BOUNDARY n o WORD_BOUNDARY d a WORD_BOUNDARY