Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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the fitbit service may display or permit linking or other access to or use of third-party content , promotions , websites , apps , services and resources ( collectively `` third-party services '' ) that are not under fitbit 's control . 

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