conversations.from: human
conversations.value: This math problem has got me stumped: Mary and Jimmy start running from the same spot, but in opposite directions. Mary runs at 5 miles per hour and Jimmy runs at 4 miles per hour. What is the distance between them after 1 hour?
  Can you show me the way?
conversations.from: assistant
conversations.value: In 1 hour, Mary will have traveled 5 miles/hour * 1 hour = 5 miles.
  In 1 hour, Jimmy will have traveled 4 miles/hour * 1 hour = 4 miles.
  Since they are running in opposite directions, the distance between them will be 5 miles + 4 miles = 9 miles.