Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
as a user , you must be responsible for your use of this website , our affiliate sites , and any transaction involving vacation rentals facilitated by instant booking and/or listed on affiliate sites . 

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