prompt: When did Lewis & Clark start their famous expedition?
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chosen.content: A chat.
chosen.role: user
chosen.content: When did Lewis & Clark start their famous expedition?
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chosen.content: Lewis & Clark's infamous expedition to the West started in the summer of 1804 from Camp Wood which is located just outside of St. Louis. The pair paddled their way down the Ohio River as they prepared for their Expedition to begin. Their journey ended when they reached St. Louis on September 23, 1806. 
rejected.role: system
rejected.content: A chat.
rejected.role: user
rejected.content: When did Lewis & Clark start their famous expedition?
rejected.role: assistant