( Plasma ( ( ( is ( an ( ( electrically charged ) gas ) ) ) ( that ( ( some scientists ) ( consider ( ( the ( fourth state ) ) ( of ( matter ( -LRB- ( ( ( the others ) ( are ( ( gas , ) ( ( liquid and ) solid ) ) ) ) -RRB- ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Plasma)) (VP (VBZ is) (NP (DT an) (ADJP (ADVP (RB electrically)) (VBN charged)) (NN gas)) (SBAR (IN that) (S (NP (DT some) (NNS scientists)) (VP (VBP consider) (NP (NP (DT the) (JJ fourth) (NN state)) (PP (IN of) (NP (NP (NN matter)) (PRN (-LRB- -LRB-) (S (NP (DT the) (NNS others)) (VP (VBP are) (NP (NP (NN gas)) (, ,) (ADJP (JJ liquid) (CC and) (JJ solid))))) (-RRB- -RRB-))))))))) (. .)))
Plasma is an electrically charged gas that some scientists consider the fourth state of matter (the others are gas, liquid and solid).
(ROOT (S (NP (NNP Plasma)) (VP (VBZ completes) (NP (NP (DT the) (NN list)) (: :) (NP (ADJP (ADJP (JJ solid)) (, ,) (ADJP (JJ liquid)) (, ,)) (NN gas)))) (. .)))