( ( As ( in ( a solid ) ) ) ( , ( ( in ( a liquid ) ) ( , ( ( the ( attractive forces ) ) ( ( are ( ( strong enough ) ( to ( ( ( ( hold ( the ( ( molecules or ) atoms ) ) ) ( ( close together ) ( so ( they ( ( are not ) ( easily compressed ) ) ) ) ) ) and ) ( have ( a ( definite volume ) ) ) ) ) ) ) . ) ) ) ) ) )
(ROOT (S (PP (IN As) (PP (IN in) (NP (DT a) (JJ solid)))) (, ,) (PP (IN in) (NP (DT a) (NN liquid))) (, ,) (NP (DT the) (JJ attractive) (NNS forces)) (VP (VBP are) (ADJP (JJ strong) (RB enough) (S (VP (TO to) (VP (VP (VB hold) (NP (DT the) (NNS molecules) (CC or) (NNS atoms)) (ADVP (ADVP (RB close) (RB together)) (SBAR (IN so) (S (NP (PRP they)) (VP (VBP are) (RB not) (VP (ADVP (RB easily)) (VBN compressed))))))) (CC and) (VP (VB have) (NP (DT a) (JJ definite) (NN volume)))))))) (. .)))
As in a solid, in a liquid, the attractive forces are strong enough to hold the molecules or atoms close together so they are not easily compressed and have a definite volume.
(ROOT (S (NP (NNS Solids)) (VP (VBP are) (VP (VBN categorized) (PP (IN by) (NP (NP (DT the) (NNS forces)) (VP (VBG holding) (NP (NP (DT the) (JJ individual) (NNS atoms)) (, ,) (NP (NNS ions)) (, ,) (CC or) (NP (NNS molecules))) (ADVP (RB together))))))) (. .)))