( ( The ( brain stem ) ) ( ( is ( ( the area ) ( of ( ( the brain ) ( that ( controls ( ( all ( of ( ( ( ( our involuntary ) , ) ( `` ( life-support ( '' functions ) ) ) ) , ) ) ) ( such ( as ( ( ( ( ( breathing rate ) , ) ( blood pressure ) ) and ) heartbeat ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN brain) (NN stem)) (VP (VBZ is) (NP (NP (DT the) (NN area)) (PP (IN of) (NP (NP (DT the) (NN brain)) (SBAR (WHNP (WDT that)) (S (VP (VBZ controls) (NP (NP (DT all)) (PP (IN of) (NP (NP (PRP$ our) (NN involuntary)) (, ,) (NP (`` ``) (JJ life-support) ('' '') (NNS functions)) (, ,))) (PP (JJ such) (IN as) (NP (NP (NN breathing) (NN rate)) (, ,) (NP (NN blood) (NN pressure)) (CC and) (NP (NN heartbeat)))))))))))) (. .)))
The brain stem is the area of the brain that controls all of our involuntary, &quot;life-support&quot; functions, such as breathing rate, blood pressure and heartbeat.
(ROOT (S (NP (DT The) (NN brain) (NN stem)) (VP (VBZ regulates) (NP (NP (DT the) (NN rate)) (PP (IN of) (NP (NN breathing))))) (. .)))