( Plasma ( ( ( is often ) ( ( considered ( ( the ( fourth state ) ) ( of matter ) ) ) ( -LRB- ( ( besides ( solid ( , ( liquid ( , ( and gas ) ) ) ) ) ) -RRB- ) ) ) ) . ) )
(ROOT (S (NP (NNP Plasma)) (VP (VBZ is) (ADVP (RB often)) (VP (VBN considered) (NP (NP (DT the) (JJ fourth) (NN state)) (PP (IN of) (NP (NN matter)))) (PRN (-LRB- -LRB-) (PP (IN besides) (UCP (ADJP (JJ solid)) (, ,) (ADJP (JJ liquid)) (, ,) (CC and) (NP (NN gas)))) (-RRB- -RRB-)))) (. .)))
Plasma is often considered the fourth state of matter (besides solid, liquid, and gas).
(ROOT (S (NP (NNP Plasma)) (VP (VBZ completes) (NP (NP (DT the) (NN list)) (: :) (NP (ADJP (ADJP (JJ solid)) (, ,) (ADJP (JJ liquid)) (, ,)) (NN gas)))) (. .)))