( Crocodiles ( ( are ( ( one ( of ( the ( few reptiles ) ) ) ) ( to ( have ( ( a ( four-chambered heart ) ) ( -LRB- ( ( like mammals ) -RRB- ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Crocodiles)) (VP (VBP are) (NP (NP (CD one)) (PP (IN of) (NP (DT the) (JJ few) (NNS reptiles))) (S (VP (TO to) (VP (VB have) (NP (NP (DT a) (JJ four-chambered) (NN heart)) (PRN (-LRB- -LRB-) (PP (IN like) (NP (NNS mammals))) (-RRB- -RRB-)))))))) (. .)))
Crocodiles are one of the few reptiles to have a four-chambered heart (like mammals).
(ROOT (S (PP (IN Like) (NP (NP (DT all) (NNS tetrapods)) (PP (IN except) (NP (NNS birds) (CC and) (NNS mammals))))) (, ,) (NP (NNS frogs)) (VP (VBP possess) (NP (NP (DT a) (NN heart)) (PP (IN with) (NP (CD three) (NNS chambers))))) (. .)))