[{'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: CHANGE OR REMOVAL OF INFORMATION.We understand that there may come a time that you may want to discontinue your use of our services. Therefore, if you wish to have us delete any email correspondence between you and us with respect to our services, please send us an email to appsupp@usa.com and we do so within 30 days."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]