( Gas ( ( ( molecules ( in equilibrium ) ) ( with ( molecules ( in ( ( ( liquid or ) solid ) state ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Gas)) (VP (VBD molecules) (PP (IN in) (NP (NN equilibrium))) (PP (IN with) (NP (NP (NNS molecules)) (PP (IN in) (NP (ADJP (JJ liquid) (CC or) (JJ solid)) (NN state)))))) (. .)))
Gas molecules in equilibrium with molecules in liquid or solid state.
(ROOT (S (NP (NNP Solid)) (VP (VBZ is) (VP (VBN characterized) (PP (IN by) (NP (NP (NP (NNS molecules)) (PP (IN with) (NP (JJ minimal) (NN movement)))) (CC and) (NP (NP (JJ strong) (NNS forces)) (PP (IN between) (NP (PRP them)))))))) (. .)))