[{'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: Leaving ASKfm Should you choose to leave ASKfm, you may do so by selecting the "I want to leave ASKfm" tab on the Contact Us page. Once received, we will process your request to leave as soon as practicable. Once processed, your profile data will be removed from the Services and your questions to friends will be converted to anonymous questions (in other words, questions you have asked will remain visible but will appear to be from an anonymous user). You will be able to reactivate your account by logging back in for a period of 30 days after your request to leave ASKfm is processed. At the end of that period your account will be deleted and all "likes" which you have added to questions will be removed. We will delete your data as soon as reasonably practicable, but in certain cases limited types of data, including log files and backups, may take up to 90 days to be fully deleted.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]