conversations.from: human
conversations.value: Can you guide me through solving this problem: John had $20. He spent 1/5 of his money on snacks and 3/4 of the remaining money on necessities. How much is left of John's money?
conversations.from: assistant
conversations.value: John spent $20 x 1/5 = $4 on snacks.
  He had $20 - $4 = $16 remaining.
  He spent $16 x 3/4 = $12 on his necessities.
  So, John is left with $16 - $12 = $4.