[{'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: Advertisements When we serve an advertisement to your device, we collect information about your interaction with this advertisement to help us evaluate the performance of the advertisement that we show, such as whether you clicked on it, or installed the advertised product. The third parties that serve these advertisements may also collect other information about your interaction with an advertisement and about your browser or device. This collection and the subsequent use of this information by these third parties is subject to these third parties' privacy policies over which Tango has no control."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]