[{'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: (3) Avast Online Security: Avast Online Security is a browser plug-in which collects opinion information provided by users, and provides a reputation rating in the form of a visual icon that appears next to websites that appear in search results. The reputation rating is based on the votes of Avast Online Security participants. Participation is voluntary. If the Avast Online Security function is active, the Avast software may send Avast the URLs of websites you visit and the results of your web searches through search engines."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]