[{'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: Purchase Orders. If Customer requires the use of a purchase order or purchase order number, Customer: (i) must provide the purchase order number at the time of purchase; and (ii) agrees that any terms and conditions on a Customer purchase order will not apply to this Agreement and are null and void. If the Customer is purchasing via a reseller, any terms and conditions from the Customer's reseller or in a purchase order between the Customer and its reseller that conflict with the Agreement are null and void. Suspension."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]