Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
( i ) use this website or its contents for any commercial purpose ; 

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