Title IV of the Clean Air Act (relating to acid deposition control)
( ( Title IV ) ( of ( ( the ( Clean ( Air Act ) ) ) ( -LRB- ( ( relating ( to ( acid ( deposition control ) ) ) ) -RRB- ) ) ) ) )
(ROOT (NP (NP (NNP Title) (NNP IV)) (PP (IN of) (NP (NP (DT the) (NNP Clean) (NNP Air) (NNP Act)) (PRN (-LRB- -LRB-) (VP (VBG relating) (PP (TO to) (NP (JJ acid) (NN deposition) (NN control)))) (-RRB- -RRB-))))))
The Clean Air Act only has a single title.
( ( The ( Clean ( Air Act ) ) ) ( only ( ( has ( a ( single title ) ) ) . ) ) )
(ROOT (S (NP (DT The) (NNP Clean) (NNP Air) (NNP Act)) (ADVP (RB only)) (VP (VBZ has) (NP (DT a) (JJ single) (NN title))) (. .)))