Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
the licence for a digital product may also be purchased or acquired outside of nintendo shopping services . 

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