( ( ( ( ( ( A ( hot ( saturated solution ) ) ) ( containing ( ( ( two or ) more ) ( dissolved solids ) ) ) ) ( is ( allowed ( to ( cool slowly ) ) ) ) ) ; ) ( ( the ( least-soluble material ) ) ( ( ( ( ( crystallizes out ) first ) , ) and ) ( can ( be ( separated ( by filtration ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (DT A) (JJ hot) (JJ saturated) (NN solution)) (VP (VBG containing) (NP (QP (CD two) (CC or) (JJR more)) (JJ dissolved) (NNS solids)))) (VP (VBZ is) (VP (VBN allowed) (S (VP (TO to) (VP (VB cool) (ADVP (RB slowly)))))))) (: ;) (S (NP (DT the) (JJ least-soluble) (NN material)) (VP (VP (VBZ crystallizes) (PRT (RP out)) (NP (JJ first))) (, ,) (CC and) (VP (MD can) (VP (VB be) (VP (VBN separated) (PP (IN by) (NP (NN filtration)))))))) (. .)))
A hot saturated solution containing two or more dissolved solids is allowed to cool slowly; the least-soluble material crystallizes out first, and can be separated by filtration.
(ROOT (S (SBAR (IN If) (S (NP (DT a) (NN solution)) (VP (VBZ contains) (ADJP (ADJP (RB so) (RB much) (JJ solute)) (SBAR (IN that) (S (NP (PRP$ its) (JJ solubility) (NN limit)) (VP (VBZ is) (VP (VBN reached))))))))) (, ,) (NP (DT the) (NN solution)) (VP (VBZ is) (VP (VBN said) (S (VP (TO to) (VP (VB be) (VP (VBN saturated))))))) (. .)))