Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
your purchase and use of third-party content may be subject to additional terms , including , but not limited to , third-party end-user agreements , and privacy policies . 

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