( Reptiles ( ( have ( ( scales , ) ( which ( results ( in ( ( a ( dry skin ) ) ( that ( may ( be ( ( ( either rough ) or ) ( quite smooth ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Reptiles)) (VP (VBP have) (NP (NP (NNS scales)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ results) (PP (IN in) (NP (NP (DT a) (JJ dry) (NN skin)) (SBAR (WHNP (WDT that)) (S (VP (MD may) (VP (VB be) (ADJP (ADJP (RB either) (JJ rough)) (CC or) (ADJP (RB quite) (JJ smooth)))))))))))))) (. .)))
Reptiles have scales, which results in a dry skin that may be either rough or quite smooth.
(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)))))))))))) (. .)))