( ( Like ( all reptiles ) ) ( , ( ( ( ( turtles ( have ( ( scaly ( , dry ) ) skin ) ) ) but ) ( ( unlike ( their ( crocodile ( and ( snake relatives ) ) ) ) ) ( , ( turtles ( have ( no teeth ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN Like) (NP (DT all) (NNS reptiles))) (, ,) (S (NP (NNS turtles)) (VP (VBP have) (NP (ADJP (JJ scaly) (, ,) (JJ dry)) (NN skin)))) (CC but) (S (PP (IN unlike) (NP (PRP$ their) (NN crocodile) (CC and) (NN snake) (NNS relatives))) (, ,) (NP (NNS turtles)) (VP (VBP have) (NP (DT no) (NNS teeth)))) (. .)))
Like all reptiles, turtles have scaly, dry skin but unlike their crocodile and snake relatives, turtles have no teeth.
(ROOT (S (NP (NP (NNP Dry) (NN skin)) (CC and) (NP (NNS scales))) (VP (VBP are) (NP (NP (NN part)) (PP (IN of) (NP (NP (DT an) (NN animal)) (SBAR (WHNP (WDT that)) (S (VP (MD would) (ADVP (RBS most) (RB likely)) (VP (VB be) (VP (VBN classified) (PP (IN as) (NP (DT a) (NN reptile)))))))))))) (. .)))