Without the discount, nobody would buy the stock.
( ( Without ( the discount ) ) ( , ( nobody ( ( would ( buy ( the stock ) ) ) . ) ) ) )
(ROOT (S (PP (IN Without) (NP (DT the) (NN discount))) (, ,) (NP (NN nobody)) (VP (MD would) (VP (VB buy) (NP (DT the) (NN stock)))) (. .)))
Nobody would buy the stock if there wasn't a discount, except Maria.
( Nobody ( ( would ( ( ( ( buy ( the stock ) ) ( if ( there ( ( was n't ) ( a discount ) ) ) ) ) , ) ( except Maria ) ) ) . ) )
(ROOT (S (NP (NN Nobody)) (VP (MD would) (VP (VB buy) (NP (DT the) (NN stock)) (SBAR (IN if) (S (NP (EX there)) (VP (VBD was) (RB n't) (NP (DT a) (NN discount))))) (, ,) (PP (IN except) (NP (NNP Maria))))) (. .)))