Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
• contains sexually explicit content or pornography ( provided , however , that non-sexual nudity is permitted ) ; 

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