Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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you may only use the services to : ( a ) access content on crowdtangle 's platform ; and ( b ) access , manage and obtain content from other platforms ( e.g. , twitter , facebook ) in accordance with these terms of service and any terms specified by those other platforms . 

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