( ( Adsorption ( ( The ( surface retention ) ) ( of ( ( ( ( ( solid , ) ( liquid ( , ( or ( ( ( ( ( ( gas molecules ) , ) atoms ) , ) or ) ( ions ( by ( a solid ) ) ) ) ) ) ) ) , ) or ) liquid ) ) ) ) . )
(ROOT (S (VP (VB Adsorption) (NP (NP (DT The) (NN surface) (NN retention)) (PP (IN of) (ADJP (ADJP (JJ solid)) (, ,) (ADJP (ADJP (JJ liquid)) (PRN (, ,) (CC or) (NP (NP (NN gas) (NNS molecules)) (, ,) (NP (NNS atoms)) (, ,) (CC or) (NP (NP (NNS ions)) (PP (IN by) (NP (DT a) (JJ solid))))))) (, ,) (CC or) (ADJP (JJ liquid)))))) (. .)))
Adsorption The surface retention of solid, liquid, or gas molecules, atoms, or ions by a solid, or liquid.
(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))))))) (. .)))