Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
supercell may publish additional policies related to specific services such as forums , contests or loyalty programs . 

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