conversations.from: human
conversations.value: A cougar is sleeping for 4 hours at night, and a zebra for 2 hours more. How much time do both animals sleep in one week?
conversations.from: assistant
conversations.value: The zebra sleeps for 4 + 2 = 6 hours.
  During one week, the cougar sleeps 4 * 7 = 28 hours.
  And the zebra sleeps 6 * 7 = 42 hours.
  Both animals sleep for 28 + 42 = 70 hours during one week.