[{'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: HealthVault periodically sends newsletters to help keep you informed of the latest improvements. HealthVault will also periodically send you an email summarizing recent account activity. Subject to your contact preferences, we also use your email addresses to send you promotional email. You can unsubscribe from these emails at any time."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_E_Mail_Address_1stParty.'}]