conversations.from: human
conversations.value: The novelty shop on the Starship Conundrum sells magazines and chocolates.  The cost of four chocolate bars is equal to the cost of 8 magazines.  If one magazine costs $1, how much does a dozen chocolate bars cost, in dollars?
  How to solve this?
conversations.from: assistant
conversations.value: If one magazine costs $1, then 8 magazines cost 8*$1=$8.
  Let's define "x" as the cost of one chocolate bar.
  The cost of four chocolate bars is equal to the cost of 8 magazines and 4*x=$8.
  Dividing each side by 4, we get the cost of one chocolate bar x=$2.
  Therefore, a dozen chocolate bars would cost 12*$2=$24.