conversations.from: human
conversations.value: Provide a step by step solution for the following math problem: An auto shop has a part that Clark needs for $80. Clark buys 7 of them and got a discount. If Clark only had to pay $439, how much was the discount?
conversations.from: assistant
conversations.value: Originally the car parts would be a total of 80*7 = 560 dollars.
  Clark got a discount for 560-439 = 121 dollars.