[{'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: However, even if you opt out from receiving customized marketing, it will not affect whether you receive other types of ads and marketing on your mobile devices."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]