Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
7.5 we may link user material or parts of user material to other material , including material submitted by other users or created by headspace or other third parties . 

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