Oh, what a fool I feel! 
( ( Oh ( , ( ( what ( a fool ) ) ( I feel ) ) ) ) ! )
(ROOT (S (S (INTJ (UH Oh)) (, ,) (X (X (WP what)) (NP (DT a) (NN fool))) (NP (PRP I)) (VP (VBP feel))) (. !)))
I am such a fool!
( I ( ( am ( such ( a fool ) ) ) ! ) )
(ROOT (S (NP (PRP I)) (VP (VBP am) (NP (PDT such) (DT a) (NN fool))) (. !)))