Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
the tripadvisor websites are controlled and operated by tripadvisor from its offices in the commonwealth of massachusetts in the united states . 

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