( ( The ( circulatory system ) ) ( ( is ( perfused ( with ( ( a material ) ( that ( ( will not ) ( support life ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ circulatory) (NN system)) (VP (VBZ is) (VP (VBN perfused) (PP (IN with) (NP (NP (DT a) (NN material)) (SBAR (WHNP (WDT that)) (S (VP (MD will) (RB not) (VP (VB support) (NP (NN life)))))))))) (. .)))
The circulatory system is perfused with a material that will not support life.
(ROOT (S (NP (NP (DT The) (JJ main) (NN function)) (PP (IN of) (NP (DT the) (JJ circulatory) (NN system)))) (VP (VBZ is) (S (VP (TO to) (VP (VB transport) (NP (NNS materials)))))) (. .)))