[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: No Third-Party Banner Ads. We do not allow third-party banner ads on WhatsApp. We have no intention to introduce them, but if we ever do, we will update this policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]