conversations.from: human
conversations.value: This math problem has got me stumped: Sam shared a sum of money between his three cousins Sandra, Amy and Ruth in the ratio 2:1:3 respectively. If Amy got $50, how much did Sandra get?
  Can you show me the way?
conversations.from: assistant
conversations.value: Going by the ratio, for every 1 part that Amy gets, Sandra will get 2 parts
  Since Amy got $50, Sandra will get 2*$50 = $100