Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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other than as expressly authorized in the service , you shall not sell , purchase , redeem or otherwise transfer virtual items or merchandise to any person or entity or attempt any of the aforesaid , including but not limited to supercell , another user or any third party . 

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