conversations.from: human
conversations.value: Martha has 20 apples. She decided to split them among her friends. Jane got 5 apples from her, and James got 2 more than Jane. How many more apples would Martha need to give away to be left with only 4 of them?
  Give me a detailed solution.
conversations.from: assistant
conversations.value: Martha gave James 5 + 2 = 7 apples.
  So Martha was left with 20 - 5 - 7 = 8 apples.
  To be left with only 4 apples, Martha would need to give away 8 - 4 = 4 more apples.