( Atoms ( ( consist ( of ( ( ( ( ( ( a ( central nucleus ) ) , ) ( containing ( ( protons and ) neutrons ) ) ) , ) and ) ( ( an ( outer cloud ) ) ( of ( orbiting electrons ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Atoms)) (VP (VBP consist) (PP (IN of) (NP (NP (NP (DT a) (JJ central) (NN nucleus)) (, ,) (VP (VBG containing) (NP (NNS protons) (CC and) (NNS neutrons)))) (, ,) (CC and) (NP (NP (DT an) (JJ outer) (NN cloud)) (PP (IN of) (NP (VBG orbiting) (NNS electrons))))))) (. .)))
Atoms consist of a central nucleus, containing protons and neutrons, and an outer cloud of orbiting electrons.
(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))))) (. .)))