( Solid ( ( is ( ( the state ) ( ( in which ) ( matter ( maintains ( ( ( a ( fixed volume ) ) and ) shape ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Solid)) (VP (VBZ is) (NP (NP (DT the) (NN state)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (NN matter)) (VP (VBZ maintains) (NP (NP (DT a) (VBN fixed) (NN volume)) (CC and) (NP (NN shape)))))))) (. .)))
Solid is the state in which matter maintains a fixed volume and shape.
(ROOT (S (NP (NP (DT The) (NN name)) (PP (IN for) (NP (NP (DT a) (NN matter)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (NP (NP (DT a) (VBN fixed) (NN volume)) (CC and) (NP (DT a) (VBN fixed) (NN shape))))))))) (VP (VBZ is) (ADJP (JJ solid))) (. .)))