[{'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: Waze may use cookies for various purposes, such as to save you the need to re-enter your username and password each time you log-in, to facilitate the use of the Website, to collect statistical information, to verify information, and to customize the Website to your personal preferences and for information security purposes."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]