conversations.from: human
conversations.value: I run 12 miles in 90 minutes. What is my average speed in miles per hour?
conversations.from: assistant
conversations.value: First convert 90 minutes to hours: 90 minutes / 60 minutes/hours = 1.5 hours.
  In 1 hour, I run 12 miles / 1.5 hours = 8 miles/hour.