Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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you acknowledge that your use of the service is subject to this risk and that you knowingly assume it and make your decisions to participate in the service , contribute content and spend your money accordingly . 

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