Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you agree that the invalid part will be considered deleted from the agreement , but that all other parts of the agreement will remain in effect . 

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