[{'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: Privacy Policy Updates This Privacy Policy is subject to occasional revision, and if we make any substantial changes in the way we use Your Personal Information, we will post a notice on this page. If You object to any such changes, You must cease using our Websites and our products and services where Personal Information is collected. Continued use of our Websites and our products and services following notice of any such changes will indicate Your acknowledgement of the changes and agreement to be bound by the new terms and conditions."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]