conversations.from: human
conversations.value: Melissa is repairing her shoes. For each shoe, it takes her 5 minutes to replace the buckle and 10 minutes to even out the heel. How many minutes does Melissa spend on this project total?
  How to solve this?
conversations.from: assistant
conversations.value: First find the total time Melissa spends per shoe: 5 minutes + 10 minutes = 15 minutes
  Then double that amount because there are 2 shoes: 15 minutes * 2 = 30 minutes