[{'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: Before shipping / delivering your order to you, Seller may request you to provide supporting documents (including but not limited to Govt. issued ID and address proof) to establish the ownership of the payment instrument used by you for your purchase. This is done in the interest of providing a safe online shopping environment to Our Users."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]