( ( The ( United States ) ) ( ( is ( committed ( ( ( to ( a ( clean ( energy future ) ) ) ) and ) ( to ( ( the goal ) ( of ( reducing ( greenhouse ( gas emissions ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP United) (NNPS States)) (VP (VBZ is) (VP (VBN committed) (PP (PP (TO to) (NP (DT a) (JJ clean) (NN energy) (NN future))) (CC and) (PP (TO to) (NP (NP (DT the) (NN goal)) (PP (IN of) (S (VP (VBG reducing) (NP (NN greenhouse) (NN gas) (NNS emissions)))))))))) (. .)))
The United States is committed to a clean energy future and to the goal of reducing greenhouse gas emissions.
(ROOT (S (NP (JJ Geothermal) (NN energy) (NN energy)) (VP (VP (VBZ is) (ADJP (JJ clean))) (CC and) (VP (VBZ does) (RB not) (VP (VB release) (NP (NN greenhouse) (NNS gases))))) (. .)))