( Capillaries ( ( ( ( run ( throughout ( the body ) ) ) , ) ( ( ( ( ( passing ( ( ( ( ( oxygen , ) nutrients ) , ) and ) ( other substance ) ) ) ( through ( their walls ) ) ) ( to ( the ( tissue beds ) ) ) ) and ) ( ( ( taking ( carbon ( dioxide ( and ( other ( waste products ) ) ) ) ) ) ( from ( the ( tissue beds ) ) ) ) ( back ( into ( the ( blood stream ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Capillaries)) (VP (VBP run) (PP (IN throughout) (NP (DT the) (NN body))) (, ,) (S (VP (VP (VBG passing) (NP (NP (NN oxygen)) (, ,) (NP (NNS nutrients)) (, ,) (CC and) (NP (JJ other) (NN substance))) (PP (IN through) (NP (PRP$ their) (NNS walls))) (PP (TO to) (NP (DT the) (NN tissue) (NNS beds)))) (CC and) (VP (VBG taking) (NP (NN carbon) (NN dioxide) (CC and) (JJ other) (NN waste) (NNS products)) (PP (IN from) (NP (DT the) (NN tissue) (NNS beds))) (ADVP (RB back) (PP (IN into) (NP (DT the) (NN blood) (NN stream)))))))) (. .)))
Capillaries run throughout the body, passing oxygen, nutrients, and other substance through their walls to the tissue beds and taking carbon dioxide and other waste products from the tissue beds back into the blood stream.
(ROOT (S (PP (IN In) (NP (DT the) (NN body))) (, ,) (S (NP (NN oxygen)) (VP (VBZ is) (VP (VBN used) (PP (IN by) (NP (NP (NNS cells)) (PP (IN of) (NP (NP (DT the) (NN body) (POS 's)) (NNS tissues)))))))) (CC and) (S (NP (NN carbon) (NN dioxide)) (VP (VBZ is) (VP (VBN produced) (PP (IN as) (NP (DT a) (NN waste) (NN product)))))) (. .)))