Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you acknowledge that we may indirectly commercially benefit from use of your user material . 

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