( ( ( ( Hydrogen atom ) - ) ( one proton ) ) ( - ( ( ( ( one electron ) - ) ( net ( charge 0 ) ) ) . ) ) )
(ROOT (FRAG (NP (NP (NN Hydrogen) (NN atom)) (: -) (NP (CD one) (NN proton))) (: -) (NP (NP (CD one) (NN electron)) (: -) (NP (JJ net) (NN charge) (NNS 0))) (. .)))
Hydrogen atom- one proton- one electron- net charge 0.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD one) (NNS electrons)) (PP (IN in) (NP (DT the) (NN hydrogen) (NN atom))))) (. .)))