Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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if after a good faith effort to negotiate one of us feels the dispute has not and can not be resolved informally , the party intending to pursue arbitration agrees to notify the other party via email prior to initiating the arbitration . 

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