Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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these terms of service , any supplemental policies and any documents expressly incorporated by reference herein ( including the supercell privacy policy ) , contain the entire understanding of you and supercell , and supersede all prior understandings of the parties hereto relating to the subject matter hereof , whether electronic , oral or written , or whether established by custom , practice , policy or precedent , between you and us with respect to the service . 

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