[{'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: 5 Recommend this website to your friends 5.1 If you select to use our products and services, we recommended that you refer our website and products and services to a friend for the better protection of his or her mobile devices. This may be done simply by giving us your friend's name or email. We will automatically send a one-time email to your friend to invite him/her to access our website, and store his/her emails for the sole purpose of sending this one-time email and tracking the success of our referral program. Your friend may contact us at privacy@nq.com to request we remove this information from our database."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]