Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
all other trademarks , service marks , logos , trade names and any other proprietary designations are the trademarks or registered trademarks of their respective owners and may not be used without permission of the applicable trademark holder . 

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