( ( ( The ( following element ) ) ( with ( ( an ( atomic weight ) ) ( which ( ( is ( next ( in magnitude ) ) ) ( to helium ) ) ) ) ) ) ( ( ( ( is lithium ) , ) ( with ( ( three electrons ) ( in ( a ( neutral state ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ following) (NN element)) (PP (IN with) (NP (NP (DT an) (JJ atomic) (NN weight)) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (ADVP (JJ next) (PP (IN in) (NP (NN magnitude)))) (PP (TO to) (NP (NNP helium))))))))) (VP (VBZ is) (ADJP (JJ lithium)) (, ,) (PP (IN with) (NP (NP (CD three) (NNS electrons)) (PP (IN in) (NP (DT a) (JJ neutral) (NN state)))))) (. .)))
The following element with an atomic weight which is next in magnitude to helium is lithium, with three electrons in a neutral state.
(ROOT (S (NP (NNP Lithium)) (VP (VBZ has) (NP (CD three) (NNS electrons))) (. .)))