[{'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: At any moment, you can freely delete your Myworld Database. In that case, Elokence shall delete definitively all Identification Information related to your Myworld Database, but has the right to keep the Characteristics Information for the statistical purpose described above."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]