( Neutrons ( ( carry ( ( no charge ) ( -LRB- ( ( they ( are neutral ) ) -RRB- ) ) ) ) . ) )
(ROOT (S (NP (NNS Neutrons)) (VP (VBP carry) (NP (NP (DT no) (NN charge)) (PRN (-LRB- -LRB-) (S (NP (PRP they)) (VP (VBP are) (ADJP (JJ neutral)))) (-RRB- -RRB-)))) (. .)))
Neutrons carry no charge (they are neutral).
(ROOT (S (NP (DT A) (NN neutron)) (VP (VBZ has) (NP (ADJP (JJ neutral) (CC or) (DT no)) (NN charge))) (. .)))