( ( ( THE ( IMMUNE SYSTEM ) ) ( The ( immune system ) ) ) ( ( consists ( of ( ( ( a network ) ( of ( specialized cells ) ) ) ( which ( ( respond ( to ( ( foreign substances ) ( in ( the body ) ) ) ) ) ( ( in order ) ( to ( prevent ( ( infection or ) disease ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT THE) (NNP IMMUNE) (NNP SYSTEM)) (NP (DT The) (JJ immune) (NN system))) (VP (VBZ consists) (PP (IN of) (NP (NP (DT a) (NN network)) (PP (IN of) (NP (JJ specialized) (NNS cells))) (SBAR (WHNP (WDT which)) (S (VP (VBP respond) (PP (TO to) (NP (NP (JJ foreign) (NNS substances)) (PP (IN in) (NP (DT the) (NN body))))) (SBAR (IN in) (NN order) (S (VP (TO to) (VP (VB prevent) (NP (NN infection) (CC or) (NN disease)))))))))))) (. .)))
THE IMMUNE SYSTEM The immune system consists of a network of specialized cells which respond to foreign substances in the body in order to prevent infection or disease.
(ROOT (S (NP (DT The) (JJ immune) (NN system)) (ADVP (RB typically)) (VP (VP (VBZ recognizes)) (, ,) (VP (VBZ attacks)) (, ,) (CC and) (VP (VBZ destroys) (NP (NP (JJ foreign) (NNS cells) (CC or) (NNS substances)) (SBAR (WHNP (WDT that)) (S (VP (MD may) (VP (VB cause) (NP (NN disease))))))))) (. .)))
The immune system typically recognizes, attacks, and destroys foreign cells or substances that may cause disease.