conversations.from: human
conversations.value: Jason is making a salad. The lettuce has 30 calories, the cucumber has 80 calories, and the 12 croutons have 20 calories each. How many calories are in the salad?
  Can you solve this problem?
conversations.from: assistant
conversations.value: In total, the 12 croutons have 20 calories/crouton * 12 croutons = 240 calories.
  Together, the croutons, lettuce and cucumber have 240 + 30 + 80 = 350 calories