( ( ( ( ( It ( ( remains ( ( liquid down ) ( to ( absolute zero ) ) ) ) ( at ( ordinary pressures ) ) ) ) , ) but ) ( it ( can ( ( be readily ) ( be ( solidified ( by ( increasing ( the pressure ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP It)) (VP (VBZ remains) (ADJP (ADJP (JJ liquid) (IN down)) (PP (TO to) (NP (JJ absolute) (CD zero)))) (PP (IN at) (NP (JJ ordinary) (NNS pressures))))) (, ,) (CC but) (S (NP (PRP it)) (VP (MD can) (VP (VB be) (ADVP (RB readily)) (S (VP (VB be) (VP (VBN solidified) (PP (IN by) (S (VP (VBG increasing) (NP (DT the) (NN pressure))))))))))) (. .)))
It remains liquid down to absolute zero at ordinary pressures, but it can be readily be solidified by increasing the pressure.
(ROOT (S (S (VP (ADVP (RB Continually)) (VBG increasing) (NP (NP (DT the) (NN pressure)) (PP (IN on) (NP (DT the) (NN liquid)))))) (VP (MD will) (ADVP (RB eventually)) (VP (VB cause) (NP (DT the) (NN substance) (S (VP (TO to) (VP (VB solidify))))))) (. .)))