Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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the currency that is sold by noe via nintendo shopping services for use in a digital product or any other digital item that you may acquire within a digital product ( the `` virtual items '' ) is made available to you as a digital content in the form of a license ( right ) to trade or exchange for other digital content within the digital product . 

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