una cena la cena la cena
una cena la cena la cena .
u n a WORD_BOUNDARY s e̞ n a WORD_BOUNDARY l a WORD_BOUNDARY s e̞ n a WORD_BOUNDARY l a WORD_BOUNDARY s e̞ n a WORD_BOUNDARY
u n a WORD_BOUNDARY c e n a WORD_BOUNDARY l a WORD_BOUNDARY c e n a WORD_BOUNDARY l a WORD_BOUNDARY c e n a WORD_BOUNDARY . WORD_BOUNDARY