[{'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 We may change this Privacy Policy at any time, at our sole discretion. Use of information we collect now is subject to the Privacy Policy in effect at the time such information is used. If we make changes to the Privacy Policy, we will notify you by posting an announcement on the Site so you are always aware of what information we collect, how we use it, and under what circumstances if any, it is disclosed. If we make any changes to this Policy, we will change the "Last Updated" date above.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]