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