conversations.from: human
conversations.value: Martin spends 2 hours waiting in traffic, then four times that long trying to get off the freeway. How much time does he waste total?
conversations.from: assistant
conversations.value: First find the total amount of time he spends trying to get off the freeway: 2 hours * 4 = 8 hours
  Then add the time he spends waiting in traffic to find the total time: 8 hours + 2 hours = 10 hours