conversations.from: human
conversations.value: Break down this math problem: A chef needs to make french fries.  He can get 25 fries out of 1 potato.  He has 15 potatoes and he needs 200 fries.  How many potatoes will he have leftover?
conversations.from: assistant
conversations.value: To make 200 fries he will need 200 / 25 fries per potato = 8 potatoes.
  He has 15 potatoes - 8 potatoes = 7 leftover potatoes.