[{'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: 5. Data Retention Imangi retains the data collected pursuant to this Privacy Policy for the period necessary to fulfill the purposes outlined in this Privacy Policy unless a longer retention period is required or permitted by law. Thereafter if the collected data is no longer needed for purposes specified in this Privacy Policy, Imangi deletes all aforementioned data in its possession within a reasonable timeframe."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]