veers like a drunken driver through heavy traffic 
(ROOT (S (VP (VBZ veers) (PP (IN like) (NP (DT a) (JJ drunken) (NN driver))) (PP (IN through) (NP (JJ heavy) (NN traffic))))))
(ROOT (S (VP (VBZ ) (PP (IN ) (NP (DT ) (JJ ) (NN ))) (PP (IN ) (NP (JJ ) (NN ))))))