Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
5.2 the airbnb platform , airbnb content , and member content may in its entirety or in part be protected by copyright , trademark , and/or other laws of the united states and other countries . 

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