[{'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: You may provide us email addresses of your friends to invite them to the game. We keep these addresses for a while to contact them and remind them that they have been invited to the application. They can opt not to receive further mail from us, at any time."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_E_Mail_Address_1stParty.'}]