( Electrons ( ( ( ( ( orbit ( the nucleus ) ) , ) ( much ( as planets ) ) ) ( orbit ( the sun ) ) ) . ) )
(ROOT (S (NP (NNS Electrons)) (VP (VB orbit) (NP (DT the) (NN nucleus)) (, ,) (ADVP (RB much) (PP (IN as) (NP (NNS planets)))) (VP (VB orbit) (NP (DT the) (NN sun)))) (. .)))
Electrons orbit the nucleus, much as planets orbit the sun.
(ROOT (S (NP (NP (DT The) (NN electron)) (VP (VBN released) (PP (IN during) (NP (JJ beta) (NN decay))))) (VP (VBZ is) (RB not) (NP (NP (DT an) (JJ orbital) (NN electron)) (PP (CC but) (NP (NP (DT an) (NN electron)) (SBAR (WHNP (WP$ whose) (NNS origin)) (S (VP (VBD was) (PP (IN in) (NP (DT the) (NN nucleus)))))))))) (. .)))