conversations.from: human
conversations.value: Find the answer to this math problem: Ivanka wrote a book that took her 3 more months than it took Woody to write a book. Woody spent 1.5 years writing his book. How many months in total did Ivanka and Woody need to write their books?
conversations.from: assistant
conversations.value: Woody = 1.5 years = 18 months
  Ivanka = 18 + 3 = 21 months
  18 + 21 = 39 months
  It took Ivanka and Woody 39 months to write their books.