Alice claims that she knows who will win the next World Cup. She takes the name of the team,

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$,$ and encrypts it with a one$-$time pad

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$,$ and sends

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to Bob. After the World Cup is finished, Alice reveals

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$,$ and Bob computes

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$=$

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to determine Alice$$s guess. Why should Bob not believe that Alice actually guessed the correct team, even if

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is correct?