[{'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: "Contact us." There are many opportunities to contact us via our website. There are links that allow you to reach us by email, by clicking a "report a virus" link, by clicking our media contact or news subscription buttons, or by requesting online service or support. In addition, U.S. users may be able to request a free in-person presentation with Avast security experts using a form on our "Community" pages. In general, the amount of information that we collect when you contact us will be in proportion to the nature of the contact. For example, if you contact us by email, we will require your email address in order to reply.'}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_E_Mail_Address_1stParty.'}]