( ( Most ( of ( ( Earth 's ) water ) ) ) ( ( is ( ( salt water ) ( in ( ( the oceans ) ( -LRB- ( ( 97 % ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJS Most)) (PP (IN of) (NP (NP (NNP Earth) (POS 's)) (NN water)))) (VP (VBZ is) (NP (NP (NN salt) (NN water)) (PP (IN in) (NP (NP (DT the) (NNS oceans)) (PRN (-LRB- -LRB-) (NP (CD 97) (NN %)) (-RRB- -RRB-)))))) (. .)))
Most of Earth's water is salt water in the oceans (97%).
(ROOT (S (NP (NP (JJS Most)) (PP (IN of) (NP (NP (NN earth) (POS 's)) (NN water)))) (VP (VBZ is) (VP (VBN located) (PP (IN in) (NP (NNS oceans)))))))