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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provide the lyrics for the song titled yesterday
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yesterday, all my troubles seemed so far away 
now it looks as though they're here to stay 
oh, i believe in yesterday 
suddenly, i'm not half the man i used to be 
there's a shadow hanging over me 
oh, yesterday came suddenly
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