tú sabes qué son
tú sabes qué son ?
t u WORD_BOUNDARY s a β e̞ s WORD_BOUNDARY k e̞ WORD_BOUNDARY s o̞ n WORD_BOUNDARY
t ú WORD_BOUNDARY s a b e s WORD_BOUNDARY q u é WORD_BOUNDARY s o n WORD_BOUNDARY ? WORD_BOUNDARY