[{'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: Upon use of Hike application or related services, you authorize us to contact you regarding any promotions / notifications pertaining to Hike Application, notwithstanding that your number may be registered in the respective Do not Call Registry in your jurisdiction."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]