conversations.from: human
conversations.value: Carla needs to dry-clean 80 pieces of laundry by noon. If she starts work at 8 AM, how many pieces of laundry does she need to clean per hour?
conversations.from: assistant
conversations.value: First find how many hours Carla has to work: 12:00 - 8:00 = 4 hours
  Then divide the total amount of laundry by the number of hours to find how many pieces Carla has to clean per hour: 80 pieces / 4 hours = 20 pieces/hour