Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
linden lab 's receipt of your unsolicited ideas and materials is not an admission by linden lab of their novelty , priority , or originality , and it does not impair linden lab 's right to contest existing or future intellectual property rights relating to your unsolicited ideas and materials . 

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