Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
prior to initiating an arbitration , you and airbnb each agree to notify the other party of the dispute and attempt to negotiate an informal resolution to it first . 

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