Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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the content and information on this website ( including , but not limited to , messages , data , information , text , music , sound , photos , graphics , video , maps , icons , software , code or other material ) , as well as the infrastructure used to provide such content and information , is proprietary to us . 

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