[{'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: In our role of delivering targeted advertisements, Camfrog plays the middleman. Advertisers give us advertisements and tell us the type of audience they want to reach (for example, males over 35 years old). Camfrog displays the advertisement to users meeting the specified criteria. In this process, the advertiser never has access to individual user information. This kind of advertisement targeting is done with banner ads as well as promotional email through Camfrog and its affiliates. You will only receive special offers via email from Camfrog if you have indicated in your account preferences, or at some other time, that you would like to receive them."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Demographic_Age_3rdParty.'}]