conversations.from: human
conversations.value: Jonathan ran 7.5 kilometers. Mercedes ran twice that distance and Davonte ran 2 kilometers farther than Mercedes. How many kilometers did Mercedes and Davonte run in total?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: Mercedes = 2 * 7.5 = 15 km
  Davonte = 15 + 2 = 17 km
  15 + 17 = 32 km
  Mercedes and Davonte ran 32 km in total.