( ( Neurotransmitter ( ( The ( chemical substance ) ) ( between ( ( nerve cells ) ( in ( ( the brain ) ( which ( ( allows ( ( the transmission ) ( of ( ( an impulse ) ( from ( one nerve ) ) ) ) ) ) ( to another ) ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Neurotransmitter) (NP (NP (DT The) (JJ chemical) (NN substance)) (PP (IN between) (NP (NP (NN nerve) (NNS cells)) (PP (IN in) (NP (NP (DT the) (NN brain)) (SBAR (WHNP (WDT which)) (S (VP (VBZ allows) (NP (NP (DT the) (NN transmission)) (PP (IN of) (NP (NP (DT an) (NN impulse)) (PP (IN from) (NP (CD one) (NN nerve)))))) (PP (TO to) (NP (DT another)))))))))))) (. .)))
Neurotransmitter The chemical substance between nerve cells in the brain which allows the transmission of an impulse from one nerve to another.
(ROOT (S (PP (IN Like) (S (NP (DT a) (NN runner)) (VP (VBG passing) (NP (DT a) (NN baton))))) (, ,) (NP (NP (DT the) (NN transmission)) (PP (IN of) (NP (NP (NN nerve) (NNS impulses)) (PP (IN between) (NP (NNS neurons)))))) (VP (VBZ depends) (PP (IN on) (NP (NNS neurotransmitters)))) (. .)))