Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
supercell has no obligation to monitor or enforce your intellectual property rights in or to your user content . 

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