[{'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: This site may also use Web beacons (also known as clear gifs, pixel tags or Web bugs), which are tiny graphics with a unique identifier, similar in function to cookies, that are placed in the code of a Web page. We use Web beacons to monitor the traffic patterns of users from one page within our sites to another, to deliver or communicate with cookies, to understand whether you have come to our site from an online advertisement displayed on a third-party website, and to improve site performance. We also may allow our service providers to use Web beacons to help us understand which emails have been opened by recipients and to track the visitor traffic and actions on our site. This helps us measure the effectiveness of our content and other offerings."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_1stParty, Identifier_Cookie_or_similar_Tech_3rdParty.'}]