[{'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: Unless otherwise specified, we retain information as long as it is necessary and relevant for us to achieve the purposes referred to above or to enable us to comply with our legal data protection retention obligations. You consent to our retention of your video viewing tracking data for as long as permissible under applicable law - up to one year after you close your account or otherwise withdraw consent for video tracking."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]