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