( ( ( The ( ( protons and ) neutrons ) ) ( ( cluster together ) ( in ( ( the ( central part ) ) ( of ( the atom ) ) ) ) ) ) ( , ( ( called ( ( ( ( the nucleus ) , ) and ) ( ( the ( electrons ( ` ( orbit ' ) ) ) ) ( the nucleus ) ) ) ) . ) ) )
(ROOT (SINV (S (NP (DT The) (NNS protons) (CC and) (NNS neutrons)) (VP (VBD cluster) (ADVP (RB together)) (PP (IN in) (NP (NP (DT the) (JJ central) (NN part)) (PP (IN of) (NP (DT the) (NN atom))))))) (, ,) (VP (VBD called)) (NP (NP (DT the) (NN nucleus)) (, ,) (CC and) (NP (NP (DT the) (JJ electrons) (`` `) (NN orbit) ('' ')) (NP (DT the) (NN nucleus)))) (. .)))
The protons and neutrons cluster together in the central part of the atom, called the nucleus , and the electrons 'orbit' the nucleus.
(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))))) (. .)))