the sweetest thing leaves an awful sour taste . 
(ROOT (S (NP (DT the) (JJS sweetest) (NN thing)) (VP (VBZ leaves) (NP (DT an) (JJ awful) (JJ sour) (NN taste))) (. .)))
(ROOT (S (NP (DT ) (JJS ) (NN )) (VP (VBZ ) (NP (DT ) (JJ ) (JJ ) (NN ))) (. )))