cacushaca na cana canca na
cacushaca na cana canca na .
t s a t s u s h a t s a WORD_BOUNDARY n a WORD_BOUNDARY t s a n a WORD_BOUNDARY t s a n t s a WORD_BOUNDARY n a WORD_BOUNDARY
c a c u s h a c a WORD_BOUNDARY n a WORD_BOUNDARY c a n a WORD_BOUNDARY c a n c a WORD_BOUNDARY n a WORD_BOUNDARY