conversations.from: human
conversations.value: Jenny had $24 left after spending 3/7 of her money. How much is half of her original amount of money?
conversations.from: assistant
conversations.value: Jenny spent 1 - 3/7 = 4/7 of her money.
  Since 4/7 is equal to $24, then 1/7 is equal to $24/4 = $6.
  So, Jenny originally had $6 x 7 = $42.
  Therefore, half of her original amount of money is $42/2 = $21.