( Blood ( ( ( ( ( ( comes ( into ( ( the ( right atrium ) ) ( from ( the body ) ) ) ) ) , ) ( goes ( to ( the ( right ventricle ) ) ) ) ) , ) ( then ( into ( ( the ( pulmonary artery ) ) ( which ( ( ( carries ( the blood ) ) ( to ( the lungs ) ) ) ( to ( be oxygenated ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Blood)) (VP (VP (VBZ comes) (PP (IN into) (NP (NP (DT the) (JJ right) (NN atrium)) (PP (IN from) (NP (DT the) (NN body)))))) (, ,) (VP (VBZ goes) (PP (TO to) (NP (DT the) (JJ right) (NN ventricle)))) (, ,) (PP (ADVP (RB then)) (IN into) (NP (NP (DT the) (JJ pulmonary) (NN artery)) (SBAR (WHNP (WDT which)) (S (VP (VBZ carries) (NP (DT the) (NN blood)) (PP (TO to) (NP (DT the) (NNS lungs))) (S (VP (TO to) (VP (VB be) (VP (VBN oxygenated))))))))))) (. .)))
Blood comes into the right atrium from the body, goes to the right ventricle, then into the pulmonary artery which carries the blood to the lungs to be oxygenated.
(ROOT (S (NP (NP (NNP Blood)) (PP (IN from) (NP (DT the) (NN body)))) (VP (VBZ enters) (NP (NP (JJ right) (NN atrium)) (PP (IN of) (NP (DT the) (NN heart)))) (SBAR (IN before) (S (NP (PRP it)) (VP (VBZ is) (VP (VBN pumped) (PP (PP (TO to) (NP (DT the) (JJ right) (NN ventricle))) (CC and) (RB then) (PP (TO to) (NP (DT the) (NNS lungs))))))))) (. .)))