[{'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: Alternatively, you may choose to create an Account using your Facebook account when, for example, you do not wish to provide your phone number. In such a case, phone number provision is optional. Please note that we do not collect your Facebook password."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_Password_1stParty, Contact_Phone_Number_1stParty, Facebook_SSO.'}]