[{'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: Ad network We may feature advertising within our service. The advertisers may collect and use information about you, such as your service session activity, or your Google advertising ID. They may use this information to provide advertisements of interest to you."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Ad_ID_3rdParty.'}]