“…or announcing "This is yours," to its downchain WPAs. The selected WPAs and/or their down-chain WPAs of each Web server, which in turn, interpret the Q in according to their IPs and reply the answer "This is mine" or "Not mine" with some confidence, for more details see [2,3,4]. The UIA is designed to learn the UP either implicitly or explicitly from his/her browsing history.…”