conversations.from: human
conversations.value: John wants to lose weight.  He eats 1800 calories a day and burns 2300 a day.  If he needs to burn 4000 calories to lose 1 pound how many days will it take to lose 10 pounds?
  What is the solution?
conversations.from: assistant
conversations.value: He burns 2300-1800=500 calories a day
  He needs to burn 4000*10=40,000 calories to hit his goal
  That means it will take him 40,000/500=80 days