( Hemoglobin ( ( ( ( ( is , ) ( of course ) ) , ) ( ( ( the substance ) ( in ( human blood ) ) ) ( which ( ( carries ( oxygen ( from ( the lungs ) ) ) ) ( to ( ( the ( other ( ( tissues and ) cells ) ) ) ( of ( the body ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Hemoglobin)) (VP (VBZ is) (, ,) (PP (IN of) (NP (NN course))) (, ,) (NP (NP (DT the) (NN substance)) (PP (IN in) (NP (JJ human) (NN blood))) (SBAR (WHNP (WDT which)) (S (VP (VBZ carries) (NP (NP (NN oxygen)) (PP (IN from) (NP (DT the) (NNS lungs)))) (PP (TO to) (NP (NP (DT the) (JJ other) (NNS tissues) (CC and) (NNS cells)) (PP (IN of) (NP (DT the) (NN body)))))))))) (. .)))
Hemoglobin is, of course, the substance in human blood which carries oxygen from the lungs to the other tissues and cells of the body.
(ROOT (S (NP (NNP Hemoglobin)) (VP (VBZ is) (NP (NP (DT the) (NN name)) (PP (IN of) (NP (DT the) (NN blood) (NN protein))) (SBAR (WHNP (WDT that)) (S (VP (VBZ carries) (NP (NP (NN oxygen)) (PP (IN from) (NP (DT the) (NNS lungs)))) (PP (TO to) (NP (NP (DT the) (NN body) (POS 's)) (JJ assorted) (NNS tissues)))))))) (. .)))