Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
headspace ® , the headspace logo and all other headspace product or service marks are trademarks of headspace . 

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