a doko ni mo ikenai
a doko ni mo ikenai .
a WORD_BOUNDARY d o k o WORD_BOUNDARY n i WORD_BOUNDARY m o WORD_BOUNDARY i k e n a i WORD_BOUNDARY
a WORD_BOUNDARY d o k o WORD_BOUNDARY n i WORD_BOUNDARY m o WORD_BOUNDARY i k e n a i WORD_BOUNDARY