conversations.from: human
conversations.value: Can you explain how to solve this math problem: Grace's age is 3/8th the age of her grandmother. Her grandmother is twice the age of Grace's mother. If Grace's mother is 80 years old, how old is Grace?
conversations.from: assistant
conversations.value: Grace's grandmother is 2 * 80 years = 160 years old.
  Grace's age is 3/8 * 160 years = 60 years old.