Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
1.6 the airbnb platform may contain links to third-party websites or resources ( `` third-party services '' ) . 

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