( ( For instance ) ( , ( crocodilians ( ( have ( ( an ( ( anatomically four-chambered ) heart ) ) ( that ( is ( capable ( of ( ( becoming ( a ( functionally ( three-chamber heart ) ) ) ) ( during ( dives ( -LRB- ( ( ( Mazzotti , ) ( 1989 ( pg 47 ) ) ) -RRB- ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (NN instance))) (, ,) (NP (NNS crocodilians)) (VP (VBP have) (NP (NP (DT an) (ADJP (RB anatomically) (JJ four-chambered)) (NN heart)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (ADJP (JJ capable) (PP (IN of) (S (VP (VBG becoming) (NP (DT a) (JJ functionally) (JJ three-chamber) (NN heart)) (PP (IN during) (NP (NP (NNS dives)) (PRN (-LRB- -LRB-) (NP (NNP Mazzotti)) (, ,) (NP (CD 1989) (NN pg) (NN 47)) (-RRB- -RRB-))))))))))))) (. .)))
For instance, crocodilians have an anatomically four-chambered heart that is capable of becoming a functionally three-chamber heart during dives (Mazzotti, 1989 pg 47).
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD three) (NNS chambers)) (PP (IN in) (NP (DT an) (NN amphibian) (NN heart))))) (. .)))