ni na na ana ni na na na
ni na na ana ni na na na .
n i WORD_BOUNDARY n a WORD_BOUNDARY n a WORD_BOUNDARY a n a WORD_BOUNDARY n i WORD_BOUNDARY n a WORD_BOUNDARY n a WORD_BOUNDARY n a WORD_BOUNDARY
n i WORD_BOUNDARY n a WORD_BOUNDARY n a WORD_BOUNDARY a n a WORD_BOUNDARY n i WORD_BOUNDARY n a WORD_BOUNDARY n a WORD_BOUNDARY n a WORD_BOUNDARY . WORD_BOUNDARY