( ( like ( ( most roads ) ( in ( the city ) ) ) ) ( , ( it ( ( is ( largely empty ) ) . ) ) ) )
(ROOT (S (PP (IN like) (NP (NP (JJS most) (NNS roads)) (PP (IN in) (NP (DT the) (NN city))))) (, ,) (NP (PRP it)) (VP (VBZ is) (ADJP (RB largely) (JJ empty))) (. .)))
like most roads in the city, it is largely empty.
(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))))) (. .)))