Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
reference to any products , services , processes or other information , by trade name , trademark , manufacturer , supplier or otherwise does not constitute or imply endorsement , sponsorship or recommendation thereof by tripadvisor . 

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