ni apa ni tu apa tu
ni apa ni tu apa tu ?
n i WORD_BOUNDARY  a p a WORD_BOUNDARY n i WORD_BOUNDARY t u WORD_BOUNDARY  a p a WORD_BOUNDARY t u WORD_BOUNDARY
n i WORD_BOUNDARY a p a WORD_BOUNDARY n i WORD_BOUNDARY t u WORD_BOUNDARY a p a WORD_BOUNDARY t u WORD_BOUNDARY