[{'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: Changes to Privacy Policy. Should we decide to change this Privacy Policy, we will update it with the release or update of the Licensed Application on Android Market so that you will always know what Personal Information we gather, how we might use it, and whether we will disclose it to anyone. Unless you opt out of receiving Announcement Emails from us, as you may do so in the manner described herein, we may also notify you by email of changes to this Privacy Policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]