[{'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: We also use your Personal Information (in some cases, in conjunction with your Non-Identifying Information) to contact you with newsletters, marketing or promotional materials and other information that may be of interest to you. If you decide at any time that you no longer wish to receive such communications from us, please follow the unsubscribe instructions provided in any of the communications or update your "user preferences" information. (See "Changing or Deleting Information," below.)'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]