( They ( ( would ( like ( ( the road ) improved ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (MD would) (VP (VB like) (S (NP (DT the) (NN road)) (ADJP (VBD improved))))) (. .)))
They would like the road improved.
(ROOT (S (S (VP (VBG Limiting) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (NNS cars)) (PP (IN on) (NP (DT the) (NNS roads)))))))) (VP (MD would) (ADVP (RBS most) (RB likely)) (VP (VB improve) (NP (DT the) (NN air) (NN quality)) (PP (IN in) (NP (JJ large) (NNS texas) (NNS cities))))) (. .)))