( ( In p-dichlorobenzene ) ( , ( ( weak ( intermolecular forces ) ) ( ( ( ( ( hold ( ( the molecules ) ( at ( their ( lattice sites ) ) ) ) ) ( within ( the ( solid structure ) ) ) ) , ) ( while ( ( strong ( covalent forces ) ) ( ( ( hold ( the atoms ) ) together ) ( in ( a ( p-dichlorobenzene molecule ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NN p-dichlorobenzene))) (, ,) (NP (JJ weak) (NN intermolecular) (NNS forces)) (VP (VBP hold) (NP (NP (DT the) (NNS molecules)) (PP (IN at) (NP (PRP$ their) (NN lattice) (NNS sites)))) (PP (IN within) (NP (DT the) (JJ solid) (NN structure))) (, ,) (SBAR (IN while) (S (NP (JJ strong) (NN covalent) (NNS forces)) (VP (VBP hold) (NP (DT the) (NNS atoms)) (PRT (RP together)) (PP (IN in) (NP (DT a) (JJ p-dichlorobenzene) (NN molecule))))))) (. .)))
In p-dichlorobenzene, weak intermolecular forces hold the molecules at their lattice sites within the solid structure, while strong covalent forces hold the atoms together in a p-dichlorobenzene molecule.
(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))))))) (. .)))