[{'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: Opt Out of Receiving Advertiser Offers We strongly recommend to and work with all our advertisers, to ensure provision of an opt out clause for all consumers, in case they no longer wish to receive advertiser offers. However we have no control over this process and cannot provide a guarantee."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]