a huge disappointment coming , as it does 
(ROOT (S (NP (DT a) (JJ huge) (NN disappointment)) (VP (VBG coming) (, ,) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ does)))))))
(ROOT (S (NP (DT ) (JJ ) (NN )) (VP (VBG ) (, ) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ )))))))