( Nucleus ( ( The nucleus ) ( ( is ( ( the ( central core ) ) ( of ( ( ( an atom ) , ) ( ( in which ) ( ( the ( ( neutrons and ) protons ) ) reside ) ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB Nucleus)) (NP (DT The) (NN nucleus)) (VP (VBZ is) (NP (NP (DT the) (JJ central) (NN core)) (PP (IN of) (NP (NP (DT an) (NN atom)) (, ,) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (DT the) (NNS neutrons) (CC and) (NNS protons)) (VP (VB reside)))))))) (. .)))
Nucleus The nucleus is the central core of an atom, in which the neutrons and protons reside.
(ROOT (S (NP (NNS Protons) (CC and) (NNS neutrons)) (VP (VBP are) (VP (VBN located) (PP (IN in) (NP (DT the) (JJ central) (NN nucleus))))) (. .)))