Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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if we delay exercising or fail to exercise or enforce any right available to us under these terms , such delay or failure does not constitute a waiver of that right or any other rights under these terms . 

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