Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
any prices posted in us dollar or non-us dollar currencies by linden lab on the service do not include any applicable sales tax , unless specifically noted that it is tax inclusive . 

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