[{'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: Information not contained in this policy More details concerning the collection or processing of Personal Data may be requested from the Data Controller at any time. Please see the contact information at the beginning of this document."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]