[{'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: Non-members may elect to permanently opt-out from receiving invite requests from members to join Plaxo. When you register for permanent opt-out, you provide us with a validated email address at which you no longer wish to receive Plaxo invite requests. Comcast may send you an opt-out confirmation email to the address you enter. If you are sent an opt-out confirmation email, you must respond to that email to complete the opt-out process. The opt-out is available here: http://www.plaxo.com/opt_out 10. Signing in Using Non-Comcast Credentials Comcast may allow you to access portions of the Comcast Web Services by signing in using your username or other identifier from another Internet service, such as Google or Facebook ("Non-Comcast Username"). This other Internet services will authenticate your identity and provide you the option to share certain information with us, such as your name or email address. Comcast will treat your Non-Comcast Username and any additional information that the relevant Internet service provides to Comcast about you as Your Data.'}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_E_Mail_Address_1stParty, Facebook_SSO, SSO.'}]