[{'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: Taxes. Fees are exclusive of taxes and Customer is responsible for all Taxes. Dropbox, or Customer's reseller, will charge Taxes when required to do so. If Customer provides Dropbox or its reseller with a valid exemption certificate, Dropbox or the reseller will not collect the taxes covered by that certificate."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]