[{'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: engages in commercial activities and/or sales without Our prior written consent such as contests, sweepstakes, barter, advertising and pyramid schemes, or the buying or selling of 'virtual' products related to the App. Throughout this Terms of Use, Flipkart's prior written consent means a communication coming from Flipkart's Legal Department, specifically in response to Your request, and specifically addressing the activity or conduct for which You seek authorization;"}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]