( ( ( ( Plasma , ) ( considered ( ( ( a fourth ) ( of ( state ( of ( matter-the ( other three ) ) ) ) ) ) ( are gas ) ) ) ) , ) ( ( ( ( solids and ) liquids-is ) ( ( an ( ( electrically ( ( neutral , ) ( highly ionized ) ) ) gas ) ) ( composed ( of ( ( ions ( , ( ( electrons and ) neutral ) ) ) particles ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Plasma)) (, ,) (VP (VBN considered) (SBAR (S (NP (NP (DT a) (JJ fourth)) (PP (IN of) (NP (NP (NN state)) (PP (IN of) (NP (JJ matter-the) (JJ other) (NX (CD three))))))) (VP (VBP are) (NP (NN gas)))))) (, ,)) (VP (VBZ solids) (CC and) (VBZ liquids-is) (NP (NP (DT an) (ADJP (ADVP (RB electrically)) (ADJP (JJ neutral)) (, ,) (ADJP (RB highly) (JJ ionized))) (NN gas)) (VP (VBN composed) (PP (IN of) (NP (ADJP (JJ ions) (, ,) (JJ electrons) (CC and) (JJ neutral)) (NNS particles)))))) (. .)))
Plasma, considered a fourth of state of matter-the other three are gas, solids and liquids-is an electrically neutral, highly ionized gas composed of ions, electrons and neutral particles.
(ROOT (S (NP (NNP Plasma)) (VP (VBZ completes) (NP (NP (DT the) (NN list)) (: :) (NP (ADJP (ADJP (JJ solid)) (, ,) (ADJP (JJ liquid)) (, ,)) (NN gas)))) (. .)))