( ( Its seeds ) ( ( ( are easily ) ( dispersed ( by ( wind ( -LRB- ( ( Smith 1985 ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP$ Its) (NNS seeds)) (VP (VBP are) (ADVP (RB easily)) (VP (VBN dispersed) (PP (IN by) (NP (NP (NN wind)) (PRN (-LRB- -LRB-) (NP (NNP Smith) (CD 1985)) (-RRB- -RRB-)))))) (. .)))
Its seeds are easily dispersed by wind (Smith 1985).
(ROOT (S (NP (NP (NNS Seeds)) (PP (IN of) (NP (DT a) (JJ pine) (NN cone)))) (VP (VP (VBP are) (ADVP (RB easily)) (VP (VBN carried) (PP (IN by) (NP (DT the) (NN wind))))) (CC and) (VP (VBD dispersed) (SBAR (IN because) (S (NP (NNS seeds)) (VP (VBP have) (NP (NNS wings))))))) (. .)))