Question:
Based on the premise "In fact, the letter, though written on stamped notepaper, might have been posted from anywhere? ", can we conclude that "So the letter could have been sent from an address other than the one on the envelope?"?
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Answer:
yes

Question:
Based on the premise "yeah it gets hard especially with the cars oh i know", can we conclude that "it can be difficult with the cars and all"?
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Answer:
yes

Question:
Based on the premise "Comment on Participant Observation and A Comparison.", can we conclude that "Remain silent on participant observation and comparison."?
****
Answer:
no