[{'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: 21.7 30 Day Right to Opt Out: You have the right to opt-out and not be bound by the arbitration and class action waiver provisions set forth in the "Binding Arbitration," "Location," and "Class Action Waiver" paragraphs above by sending written notice of your decision to opt-out to the following address: King.com (US) LLC, 3100 Ocean Park Boulevard, Santa Monica, CA 90405-3032, Attn: King Legal. The notice must be sent within 30 days of the earlier of your first download of the applicable Game or commencing use of our Services (or if no purchase was made, then within 30 days of the earliest of the date on which you first download the applicable Game or access or commence use the applicable Service); otherwise you shall be bound to arbitrate disputes in accordance with the terms of those paragraphs. If you opt-out of these arbitration provisions, we also will not be bound by them.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]