[{'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 identification information We may collect personal identification information from Users in a variety of ways, including, but not limited to, when Users visit our apps, register on the apps, and in connection with other activities, services, features or resources we make available on our apps. Users may be asked for, as appropriate, email address. Users may, however, visit our apps anonymously. We will collect personal identification information from Users only if they voluntarily submit such information to us. Users can always refuse to supply personally identification information, however it may prevent them from engaging in certain apps related activities."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_E_Mail_Address_1stParty.'}]