[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: Withholding Taxes. Customer will pay Dropbox or its reseller net of any applicable Withholding Taxes. Customer and Dropbox, or Customer's reseller as applicable, will work together to avoid any Withholding Tax if exemptions, or a reduced treaty withholding rate, are available. If Dropbox or Customer's reseller qualifies for a tax exemption, or a reduced treaty withholding rate, Dropbox or Customer's reseller will provide Customer with reasonable documentary proof. Customer will provide Dropbox or Customer's reseller reasonable evidence that it has paid the relevant authority for the sum withheld or deducted."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]