[{'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: Marketing e-mail, text messages, postal mail and door-to-door calls Marketing emails you receive from Verizon, include an unsubscribe instruction (usually found at the bottom of the email) that you may use to opt out of receiving future marketing-related emails."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]