o tapi kan mana tau
o tapi kan mana tau .
o WORD_BOUNDARY t a p i WORD_BOUNDARY k a n WORD_BOUNDARY m a n a WORD_BOUNDARY t a u WORD_BOUNDARY
o WORD_BOUNDARY t a p i WORD_BOUNDARY k a n WORD_BOUNDARY m a n a WORD_BOUNDARY t a u WORD_BOUNDARY . WORD_BOUNDARY