why it works as well as it does 
(ROOT (SBAR (WHADVP (WRB why)) (S (NP (PRP it)) (VP (VBZ works) (ADVP (ADVP (RB as) (RB well)) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ does)))))))))
(ROOT (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBZ ) (ADVP (ADVP (RB ) (RB )) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ )))))))))