conversations.from: human
conversations.value: If Sally had $20 less, she would have $80. If Jolly has $20 more, she would have $70. How much money do Sally and Jolly have altogether?
conversations.from: assistant
conversations.value: Sally has $80 + $20 = $100.
  While Jolly has $70 - $20 = $50.
  Thus, Sally and Jolly have $100 + $50 = $150 altogether.