Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
tripadvisor makes no representation that materials on the tripadvisor websites are appropriate or available for use outside of the united states . 

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