( PICTURE ( ( ( neutron ( An ( uncharged ( subatomic particle ) ) ) ) ( in ( ( the nucleus ) ( of ( an atom ) ) ) ) ) . ) )
(ROOT (S (NP (NNP PICTURE)) (VP (VBD neutron) (NP (DT An) (JJ uncharged) (JJ subatomic) (NN particle)) (PP (IN in) (NP (NP (DT the) (NN nucleus)) (PP (IN of) (NP (DT an) (NN atom)))))) (. .)))
PICTURE neutron An uncharged subatomic particle in the nucleus of an atom.
(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))))) (. .)))