[{'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 opt to enable a feature on your browser that will erase cookies, block all cookies, or warn you before cookies are stored or exchanged. Please be aware, however, that some parts of the Web sites may no longer function properly if cookies are disabled."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_1stParty.'}]