[{'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: Personal Information is collected in order to: Personalize and enhance the Users experience while using the Crazy Labs Apps. Improve the Crazy Labs Apps. Provide the Users with personalized content and information, including customized advertisements, interest-based advertisements, targeted advertisements, etc. Enable certain ad serving features, such as, frequency capping, etc. Enable certain functionalities available within the Apps, for example in-app purchases. Ensure proper functioning of the Apps and services, respond to questions or requests which were provided using the "Ask a Question" feature. Enable the User to use the Game Center Features, the Social Features and the features which are available while using the "Log in with Facebook" feature. Provide Users with updated information regarding our products and services, including without limitations with respect to competitions which we may hold from time to time. To allow Users to participate in contests or other online game events and to publicly display achievements or statistical data (such as scores, rankings and achievements) that is generated through such User\'s participation. Authentication purposes including to verify the User\'s identity when he/she signs in to the App or his/her Account; verify clicks and/or installs, verifying User\'s identity for the purpose of dealing with inappropriate interactions of Users and/or fraudulent use of our Apps.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]