conversations.from: human
conversations.value: Solve the following math problem: Diana needs to bike 10 miles to get home.  She can bike 3 mph for two hours before she gets tired, and she can bike 1 mph until she gets home.  How long will it take Diana to get home?
conversations.from: assistant
conversations.value: In the first part of her trip, Diana will cover 2 hours * 3 mph = 6 miles.
  In the second part of her trip, Diana will need to cover an additional 10 miles - 6 miles = 4 miles.
  To cover 4 miles * 1 mph = will take Diana 4 hours.
  Total biking time to get home for Diana will be 2 hours + 4 hours = 6 hours.