( ( ( ( ( ( Most ( pine seeds ) ) ( have ( wings ( for ( wind dispersal ) ) ) ) ) , ) but ) ( ( whitebark seeds ) ( have ( retained ( only ( a ( rudimentary wing ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (JJS Most) (NN pine) (NNS seeds)) (VP (VBP have) (NP (NP (NNS wings)) (PP (IN for) (NP (NN wind) (NN dispersal)))))) (, ,) (CC but) (S (NP (NN whitebark) (NNS seeds)) (VP (VBP have) (VP (VBN retained) (NP (RB only) (DT a) (JJ rudimentary) (NN wing))))) (. .)))
Most pine seeds have wings for wind dispersal, but whitebark seeds have retained only a rudimentary wing.
(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))))))) (. .)))