[{'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: 7. Your Choices and Blocking Other Users You have a variety of choices regarding the collection, use and sharing of your personal information through the Services, including the ability to prevent other users from submitting questions to you. The "Privacy" tab of the Settings page allows you to: (1) switch off receiving anonymous questions; and (2) hide your answers from appearing in the "Stream". You can opt out of receiving certain e-mail notifications from us, including emails advertising ASKfm products and services, by clicking the "Notifications" tab of the Settings page on the mobile app and through the "Privacy" tab of the Settings page on the site.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]