( ( ( Oxidized hemoglobin ) ( -LRB- ( ( that ( ( is , ) met-hemoglobin ) ) -RRB- ) ) ) ( ( is ( unable ( to ( bind oxygen ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Oxidized) (NN hemoglobin)) (PRN (-LRB- -LRB-) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (, ,) (NP (NN met-hemoglobin))))) (-RRB- -RRB-))) (VP (VBZ is) (ADJP (JJ unable) (PP (TO to) (NP (NN bind) (NN oxygen))))) (. .)))
Oxidized hemoglobin (that is, met-hemoglobin) is unable to bind oxygen.
(ROOT (S (NP (NNP Hemoglobin)) (VP (VBZ is) (NP (NP (DT a) (NN carrier) (NN molecule)) (SBAR (WHNP (WDT that)) (S (VP (VBZ becomes) (ADJP (RBR less) (JJ effective) (PP (IN at) (NP (NP (VBG binding) (NN oxygen)) (PP (IN as) (NP (NN temperature) (NNS increases))))))))))) (. .)))