[{'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: Web Beacons. "Web beacons" (also known as "clear gifs" and "pixel tags") are small transparent graphic images that are often used in conjunction with cookies in order to further personalize our website for our users and to collect a limited set of information about our visitors. We may also use web beacons in email communications in order to understand the behavior of our customers. We do not link the web beacons to any PII.'}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_1stParty.'}]