( There ( ( are ( ( a number ) ( of ( properties ( that ( can ( be ( observed ( in ( ( a material ) ( that ( identify ( ( what state ) ( ( the matter ) ( is ( in ( -- ( ( solid , ) ( liquid ( , ( gas ( , ( or plasma ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (DT a) (NN number)) (PP (IN of) (NP (NP (NNS properties)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB be) (VP (VBN observed) (PP (IN in) (NP (NP (DT a) (NN material)) (SBAR (WHNP (WDT that)) (S (VP (VBP identify) (SBAR (WHNP (WP what) (NN state)) (S (NP (DT the) (NN matter)) (VP (VBZ is) (PP (IN in) (PRN (: --) (NP (NP (JJ solid)) (, ,) (NP (NN liquid) (, ,) (NN gas) (, ,) (CC or) (NN plasma)))))))))))))))))))))) (. .)))
There are a number of properties that can be observed in a material that identify what state the matter is in -- solid, liquid, gas, or plasma.
(ROOT (S (NP (NNP Plasma)) (VP (VBZ completes) (NP (NP (DT the) (NN list)) (: :) (NP (ADJP (ADJP (JJ solid)) (, ,) (ADJP (JJ liquid)) (, ,)) (NN gas)))) (. .)))