[{'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: To show you interesting SoundCloud ads, when you visit third party websites. When you see our ads on a third party website or apps, we or third party services we engage for this purpose, may collect information your browser or mobile app makes available when seeing the ad (e.g. ip-addresses, referral URL, browser details, timestamp of request). Third party websites or apps may also allow us to measure the success of our ads on their websites. This may include e.g. whether a click converted to an actual purchase of a Subscription. Please see the privacy policy of such third party websites to understand what data may be collected and how to opt-out."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_IP_Address_1stParty, Identifier_IP_Address_3rdParty.'}]