[{'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 This Privacy StatementChanges to This Privacy Statementmainchangestothisprivacystatementmodule Summary We will update this privacy statement when necessary to reflect customer feedback and changes in our products. When we post changes to this statement, we will revise the "last updated" date at the top of the statement and describe the changes in the Change History page. If there are material changes to the statement or in how Microsoft will use your personal data, we will notify you either by prominently posting a notice of such changes before they take effect or by directly sending you a notification. We encourage you to periodically review this privacy statement to learn how Microsoft is protecting your information.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]