Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
`` user device '' refers to a device manufactured by nintendo or a third party on which a nintendo account user uses a nintendo account to access the nintendo account service . 

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