conversations.from: human
conversations.value: Farmer Brown has 60 animals on his farm, all either chickens or cows. He has twice as many chickens as cows. How many legs do the animals have, all together?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: There are 60*(2/3)=40 chickens.
  There are 60-40=20 cows.
  The chickens have 40*2=80 legs.
  The cows have 20*4=80 legs.
  They have 80+80=160 legs altogether.