conversations.from: human
conversations.value: Can you guide me through solving this problem: Tim has 30 less apples than Martha, and Harry has half as many apples as Tim. If Martha has 68 apples, how many apples does Harry have?
conversations.from: assistant
conversations.value: Tim has 68-30 = 38 apples.
  Harry has 38/2 = 19 apples.