[{'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: 4.12. For the avoidance of doubt, nothing in this Privacy Policy shall prevent Us from retaining Your Information where We are required to do so by law. If You have sent or posted content on the Service, We may not be able to delete it."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]