as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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what does the phrase "once upon a time" mean?
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the phrase "once upon a time" is used to introduce a story or a fairy tale, and comes from the old fairytale convention of beginning a story with this phrase before beginning the actual tale.
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