( ( ( ( ( ( The ( pulmonary arteries ) ) ( ( carry ( oxygen-poor blood ) ) ( from ( ( the heart ) ( to ( the lungs ) ) ) ) ) ) , ) and ) ( ( the ( pulmonary veins ) ) ( ( transport ( oxygen-rich blood ) ) ( from ( ( the lungs ) ( to ( the heart ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT The) (JJ pulmonary) (NNS arteries)) (VP (VBP carry) (NP (JJ oxygen-poor) (NN blood)) (PP (IN from) (NP (NP (DT the) (NN heart)) (PP (TO to) (NP (DT the) (NNS lungs))))))) (, ,) (CC and) (S (NP (DT the) (JJ pulmonary) (NNS veins)) (VP (VB transport) (NP (JJ oxygen-rich) (NN blood)) (PP (IN from) (NP (NP (DT the) (NNS lungs)) (PP (TO to) (NP (DT the) (NN heart))))))) (. .)))
The pulmonary arteries carry oxygen-poor blood from the heart to the lungs, and the pulmonary veins transport oxygen-rich blood from the lungs to the heart.
(ROOT (S (SBAR (IN After) (S (NP (NP (DT the) (NN blood)) (PP (IN in) (NP (DT the) (JJ pulmonary) (NNS capillaries)))) (VP (VBZ becomes) (VP (VBN saturated) (PP (IN with) (NP (NN oxygen))))))) (, ,) (NP (PRP it)) (VP (VBZ leaves) (NP (NP (DT the) (NNS lungs) (CC and) (NNS travels)) (PP (TO to) (NP (DT the) (NN heart))))) (. .)))