, alas , it collapses like an overcooked soufflé . 
(ROOT (S (, ,) (INTJ (UH alas)) (, ,) (NP (PRP it)) (VP (VBZ collapses) (PP (IN like) (NP (DT an) (VBN overcooked) (NN soufflé)))) (. .)))
(ROOT (S (, ) (INTJ (UH )) (, ) (NP (PRP )) (VP (VBZ ) (PP (IN ) (NP (DT ) (VBN ) (NN )))) (. )))