( Blockage ( ( ( is usually ) ( caused ( by ( ( a disease ) ( ( ( called ( ( Atherosclerosis , ) ( ( in which ) ( ( fatty deposits ) ( called ( plaques ( develop ( in ( the arteries ) ) ) ) ) ) ) ) ) , ) ( ( ( ( ( ( causing them ) ( to ( ( harden and ) thicken ) ) ) , ) Slowing ) or ) ( stopping ( ( the flow ) ( of blood ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Blockage)) (VP (VBZ is) (ADVP (RB usually)) (VP (VBN caused) (PP (IN by) (NP (NP (DT a) (NN disease)) (VP (VBN called) (NP (NP (NNP Atherosclerosis)) (, ,) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (JJ fatty) (NNS deposits)) (VP (VBD called) (SBAR (S (NP (NNS plaques)) (VP (VBP develop) (PP (IN in) (NP (DT the) (NNS arteries)))))))))) (, ,) (S (VP (VP (VBG causing) (NP (PRP them)) (PP (TO to) (NP (NN harden) (CC and) (NN thicken)))) (, ,) (VP (VBG Slowing)) (CC or) (VP (VBG stopping) (NP (NP (DT the) (NN flow)) (PP (IN of) (NP (NN blood)))))))))))) (. .)))
Blockage is usually caused by a disease called Atherosclerosis, in which fatty deposits called plaques develop in the arteries, causing them to harden and thicken, Slowing or stopping the flow of blood.
(ROOT (S (PP (IN In) (NP (NNS atherosclerosis))) (, ,) (NP (NP (NN thickening)) (PP (IN of) (NP (NP (DT an) (JJ arterial) (NN wall)) (ADJP (JJ due) (PP (TO to) (NP (NN plaque) (NN formation))))))) (VP (MD can) (VP (VB restrict) (NP (NN blood) (NN flow)) (PP (IN through) (NP (DT the) (NN artery))))) (. .)))