[{'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: From time to time we may modify this Policy to reflect industry initiatives or changes in the law, our Information collection and use practices, Our features, or technology, and such modifications shall be effective upon posting. Your continued use of Our Products and Services after we post a revised Policy signifies your acceptance of the revised Policy. It is therefore important that you review this Policy regularly to ensure you are updated as to any changes. If we materially change our practices regarding collection or use of your PII, your PII will continue to be governed by the Policy under which it was collected unless you have been provided notice of, and have not objected to, the change."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]