( ( At ( ( ( one temperature ) and ) ( ( pressure , ) ( called ( the ( Triple Point ) ) ) ) ) ) ( , ( ( ( all ( three phases ) ) ( of ( ( ( ( ( ( water ( -LRB- ( liquid -RRB- ) ) ) , ) ( ( water vapor ) ( -LRB- ( gas -RRB- ) ) ) ) , ) and ) ( ice ( -LRB- ( solid -RRB- ) ) ) ) ) ) ( ( coexist ( at equilibrium ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (NP (CD one) (NN temperature)) (CC and) (NP (NP (NN pressure)) (, ,) (VP (VBN called) (NP (DT the) (JJ Triple) (NNP Point)))))) (, ,) (NP (NP (DT all) (CD three) (NNS phases)) (PP (IN of) (NP (NP (NP (NN water)) (PRN (-LRB- -LRB-) (ADJP (JJ liquid)) (-RRB- -RRB-))) (, ,) (NP (NP (NN water) (NN vapor)) (PRN (-LRB- -LRB-) (NP (NN gas)) (-RRB- -RRB-))) (, ,) (CC and) (NP (NP (NN ice)) (PRN (-LRB- -LRB-) (ADJP (JJ solid)) (-RRB- -RRB-)))))) (VP (VBP coexist) (PP (IN at) (NP (NN equilibrium)))) (. .)))
At one temperature and pressure, called the Triple Point , all three phases of water (liquid), water vapor (gas), and ice (solid) coexist at equilibrium.
(ROOT (S (NP (NP (CD One) (NN way)) (SBAR (S (VP (TO to) (VP (VB change) (NP (NN water)) (PP (IN from) (NP (NP (DT a) (NN liquid)) (PP (TO to) (NP (DT a) (JJ solid)))))))))) (VP (VBZ is) (S (VP (TO to) (VP (VB decrease) (NP (DT the) (NN temperature)))))) (. .)))