Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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in addition , both host and co-host are jointly responsible and severally liable for third party claims , including guest claims , arising from the acts and omissions of the other person as related to hosting activities , communications with guests , and the provision of any co-host services . 

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