sí quiénes se saludaron
sí quiénes se saludaron ?
s i WORD_BOUNDARY k j e n e s WORD_BOUNDARY s e WORD_BOUNDARY s a l u ð a ɾ o n WORD_BOUNDARY
s í WORD_BOUNDARY q u i é n e s WORD_BOUNDARY s e WORD_BOUNDARY s a l u d a r o n WORD_BOUNDARY