Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
we are not responsible for the content of user material provided by you or any other user . 

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