conversations.from: human
conversations.value: James has 3 fish tanks.  1 of the tanks has 20 fish in it and the other two have twice as many fish each as the first. How many total fish do they have?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: The second and third tank each have 20*2=40 fish
  So in total there are 20+40*2=100 fish