( Solids ( ( are ( in ( ( ( a state ) ( of matter ) ) ( that ( maintains ( ( ( a ( fixed volume ) ) and ) shape ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Solids)) (VP (VBP are) (PP (IN in) (NP (NP (DT a) (NN state)) (PP (IN of) (NP (NN matter))) (SBAR (WHNP (WDT that)) (S (VP (VBZ maintains) (NP (NP (DT a) (VBN fixed) (NN volume)) (CC and) (NP (NN shape))))))))) (. .)))
Solids are in a state of matter that maintains a fixed volume and shape.
(ROOT (S (NP (NP (DT A) (JJ definite) (NN shape)) (CC and) (NP (DT a) (JJ definite) (NN volume))) (VP (VBP are) (NP (NP (NNS properties)) (PP (IN of) (NP (NP (NP (DT the) (JJ solid) (, ,) (JJ only) (NN state)) (PRN (-LRB- -LRB-) (PRP s) (-RRB- -RRB-))) (PP (IN of) (NP (NN matter))))))) (. .)))
A definite shape and a definite volume are properties of the solid, only state(s) of matter.