conversations.from: human
conversations.value: Solve the math problem: Dawn, Lydia, and Donna have a total of 200 bananas. Dawn has 40 more bananas than Lydia. If  Lydia has 60 bananas, how many bananas does Donna have?
conversations.from: assistant
conversations.value: If Lydia has 60 bananas, and Dawn has 40 more, then Dawn has 60+40 = 100 bananas.
  The total number of bananas Dawn and Lydia have is 100+60 = 160 bananas.
  Donna has 200-160 = 40 bananas.