Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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your purchase and use of third-party content may be subject to additional terms , including , but not limited to , third-party end-user agreements , and privacy policies . 

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. OPTIONS: ["Limitation of liability", "Unilateral termination", "Arbitration", "None", "Jurisdiction", "Content removal", "Contract by using", "Choice of law", "Unilateral change"].