[{'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: If you delete your copy of a Work Chat message, this action can't be undone. Please note that deleting your copy of a Work Chat message from your own Evernote account won't delete those messages from the accounts of the people with whom you were chatting."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]