( ( The neutron ) ( also ( ( is ( ( located ( in ( the ( atomic nucleus ) ) ) ) ( -LRB- ( ( except ( in Hydrogen ) ) -RRB- ) ) ) ) . ) ) )
(ROOT (S (NP (DT The) (NN neutron)) (ADVP (RB also)) (VP (VBZ is) (VP (VBN located) (PP (IN in) (NP (DT the) (JJ atomic) (NN nucleus))) (PRN (-LRB- -LRB-) (PP (IN except) (PP (IN in) (NP (NNP Hydrogen)))) (-RRB- -RRB-)))) (. .)))
The neutron also is located in the atomic nucleus (except in Hydrogen).
(ROOT (S (NP (NP (DT The) (NN atom)) (PP (IN in) (NP (DT a) (NN neutron)))) (VP (VBZ is) (VP (VBN found) (PP (IN in) (NP (DT the) (DT the) (NN nucleus))))) (. .)))