( ( Red ( blood cells ) ) ( ( contain ( ( hemoglobin , ) ( ( a ( complex ( protein-iron compound ) ) ) ( that ( ( carries ( oxygen ( from ( the lungs ) ) ) ) ( to ( all ( of ( ( the ( body 's ) ) cells ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Red) (NN blood) (NNS cells)) (VP (VBP contain) (NP (NP (NN hemoglobin)) (, ,) (NP (NP (DT a) (JJ complex) (JJ protein-iron) (NN compound)) (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 all)) (PP (IN of) (NP (NP (DT the) (NN body) (POS 's)) (NNS cells))))))))))) (. .)))
Red blood cells contain hemoglobin, a complex protein-iron compound that carries oxygen from the lungs to all of the body's cells.
(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)))))))) (. .)))