( ( Blood ( from ( the body ) ) ) ( ( ( enters ( the heart ) ) ( through ( ( the ( right atrium ) ) ( to ( ( the ( right ventricle ) ) ( which ( ( brings blood ) ( to ( the lungs ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Blood)) (PP (IN from) (NP (DT the) (NN body)))) (VP (VBZ enters) (NP (DT the) (NN heart)) (PP (IN through) (NP (NP (DT the) (JJ right) (NN atrium)) (PP (TO to) (NP (NP (DT the) (JJ right) (NN ventricle)) (SBAR (WHNP (WDT which)) (S (VP (VBZ brings) (NP (NN blood)) (PP (TO to) (NP (DT the) (NNS lungs))))))))))) (. .)))
Blood from the body enters the heart through the right atrium to the right ventricle which brings blood to the lungs.
(ROOT (S (NP (NP (DT The) (JJ right) (NN atrium)) (PP (IN of) (NP (DT the) (JJ human) (NN heart)))) (VP (VBD pumps) (NP (DT the) (NN blood)) (PP (TO to) (NP (DT the) (JJ right) (NN ventricle)))) (. .)))