conversations.from: human
conversations.value: Gracie was 7 inches shorter than Grayson. Grayson was 2 inches taller than Griffin. Griffin is 61 inches tall. How many inches tall is Gracie?
conversations.from: assistant
conversations.value: Grayson = 61 + 2 = 63 inches
  Gracie = 63 - 7 = 56 inches
  Gracie is 56 inches tall.