conversations.from: human
conversations.value: Stefan, Vail, and Aiguo collected seashells. Stefan had 16 more seashells than Vail. Vail had 5 less than Aiguo. Aiguo had 20 seashells. How many seashells did the 3 children have in total?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: Aiguo = 20 shells
  Vail = 20 - 5 = 15 shells
  Stefan = 15 + 16 = 31 shells
  Total = 20 + 15 + 31 = 66
  The 3 children had 66 seashells altogether.