( ( ( Abundant ( surface water ) ) ( -LRB- ( ( unique ( to ( the earth ) ) ) -RRB- ) ) ) ( ( makes ( life possible ) ) . ) )
(ROOT (S (NP (NP (JJ Abundant) (NN surface) (NN water)) (PRN (-LRB- -LRB-) (ADJP (JJ unique) (PP (TO to) (NP (DT the) (NN earth)))) (-RRB- -RRB-))) (VP (VBZ makes) (S (NP (NN life)) (ADJP (JJ possible)))) (. .)))
Abundant surface water (unique to the earth) makes life possible.
(ROOT (S (NP (NP (DT The) (NN abundance)) (PP (IN of) (NP (NN water)))) (VP (VBZ makes) (NP (NP (DT the) (NN earth) (NN habitable)) (PP (IN for) (NP (NNS humans))))) (. .)))