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