( ( Cerebellar peduncle ) ( ( is ( ( the part ) ( that ( ( connects cerebellum ) ( to ( the ( brain stem ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Cerebellar) (NNP peduncle)) (VP (VBZ is) (NP (NP (DT the) (NN part)) (SBAR (WHNP (WDT that)) (S (VP (VBZ connects) (NP (NN cerebellum)) (PP (TO to) (NP (DT the) (NN brain) (NN stem)))))))) (. .)))
Cerebellar peduncle is the part that connects cerebellum to the brain stem.
(ROOT (S (NP (NP (DT The) (NN cerebellum)) (PP (IN of) (NP (DT the) (NN brain)))) (VP (VBZ lies) (PP (PP (IN under) (NP (DT the) (NN cerebrum))) (CC and) (PP (IN behind) (NP (DT the) (NN brain) (NN stem))))) (. .)))