conversations.from: human
conversations.value: Find the answer to this math problem: Harry slept 9 hours last night. His friend James slept only 2/3 of what Harry slept. How many more hours did Harry sleep than James?
conversations.from: assistant
conversations.value: James slept 9 hours * 2/3 = 6 hours.
  So, Harry slept 9 - 6 = 3 hours more than James.