Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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other trademarks , product , and service names and company names or logos mentioned on the fitbit service are the property of their respective owners and may not be copied , imitated or used , in whole or in part , without the permission of the applicable trademark holder . 

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