Question:
Based on the premise "The notion of increasing returns has been around since Adam Smith, and it was written about at length by Alfred Marshall in 1890.", can we conclude that "Even in 1890 the idea of increasing returns kept people searching for new methods of bringing it to fruition."?
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Answer:
it is not possible to tell

Question:
Based on the premise "When this happens, guys like me will be living the life of Riley.", can we conclude that "When it happens it won't make a difference to guys like me."?
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Answer:
no

Question:
Based on the premise "Have you here now, or have you had here at any time, a young girl called Jane Finn? ", can we conclude that "Has a girl named Jane Finn ever lived here?"?
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Answer:
it is not possible to tell