[{'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: Please read this Agreement carefully before you enjoy the various services provided by Baidu. If you do not accept any terms or conditions of this Agreement and/or its amendments, you may cancel the services provided by Baidu. Once you use Baidu\'s service(s), it shall be construed and understood that you have fully understood, consented to and accepted all terms and conditions of this Agreement and its amendments, when applicable, and you shall become a Baidu User (also known as "user").'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]