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An eccentric queen is giving her great wealth and power to the first person to tell her what phrase it is impossible for her to say. On some days, everything the queen says is truthful. On other days, she tells nothing but lies. There is no pattern to what days she she is truthful or a liar, and you are forbidden to ask her any questions to determine which state she is in today. With this in mind, what phrase could this queen never ever utter?