( ( of ( nociception ( to ( ( the ( reticular formation ) ) ( in ( the medulla ) ) ) ) ) ) ; )
(ROOT (PP (IN of) (NP (NP (NN nociception)) (PP (TO to) (NP (NP (DT the) (NN reticular) (NN formation)) (PP (IN in) (NP (DT the) (NN medulla)))))) (: ;)))
of nociception to the reticular formation in the medulla;
(ROOT (S (NP (JJ Reticular) (NN formation)) (VP (VBZ is) (NP (NP (DT the) (NN name)) (PP (IN of) (NP (NP (DT the) (NN formation)) (SBAR (WHNP (WDT that)) (S (VP (VBZ regulates) (NP (NN sleep) (CC and) (NN arousal))))))))) (. .)))