( This ( ( permits ( ( ( solid water ) ( -LRB- ( ice -RRB- ) ) ) ( to ( float ( on ( liquid water ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ permits) (S (NP (NP (JJ solid) (NN water)) (PRN (-LRB- -LRB-) (NP (NN ice)) (-RRB- -RRB-))) (VP (TO to) (VP (VB float) (PP (IN on) (NP (JJ liquid) (NN water))))))) (. .)))
This permits solid water (ice) to float on liquid water.
(ROOT (S (NP (NNP Ice)) (VP (VBZ is) (NP (NP (DT the) (JJ common) (NN term)) (PP (IN for) (NP (NP (NN water)) (PP (IN in) (NP (PRP$ its) (JJ solid) (NN state))))))) (. .)))