( Liquids ( ( have ( ( ( ( a ( definite volume ) ) , ) ( but not ) ) ( a ( definite shape ) ) ) ) . ) )
(ROOT (S (NP (NNS Liquids)) (VP (VBP have) (NP (NP (DT a) (JJ definite) (NN volume)) (, ,) (CONJP (CC but) (RB not)) (NP (DT a) (JJ definite) (NN shape)))) (. .)))
Liquids have a definite volume, but not a definite shape.
(ROOT (S (NP (NN Liquid)) (VP (VBZ has) (NP (NP (DT a) (JJ definite) (NN volume)) (, ,) (CONJP (CC but) (RB not)) (NP (DT a) (JJ definite) (NN shape)))) (. .)))