( ( Some scientists ) ( ( ( ( call ( plasma ( ( the ( fourth state ) ) ( of matter ) ) ) ) , ) ( because ( it ( ( ( ( reacts differently ) ( from ( a gas ) ) ) , ) ( ( solid or ) liquid ) ) ) ) ) . ) )
(ROOT (S (NP (DT Some) (NNS scientists)) (VP (VBP call) (S (VP (VBG plasma) (NP (NP (DT the) (JJ fourth) (NN state)) (PP (IN of) (NP (NN matter)))))) (, ,) (SBAR (IN because) (S (NP (PRP it)) (VP (VBZ reacts) (ADVP (RB differently)) (PP (IN from) (NP (DT a) (NN gas))) (, ,) (ADJP (JJ solid) (CC or) (JJ liquid)))))) (. .)))
Some scientists call plasma the fourth state of matter, because it reacts differently from a gas, solid or liquid.
(ROOT (S (NP (NNP Plasma)) (VP (VBZ completes) (NP (NP (DT the) (NN list)) (: :) (NP (ADJP (ADJP (JJ solid)) (, ,) (ADJP (JJ liquid)) (, ,)) (NN gas)))) (. .)))