( ( ( ( ( ( 71 % ) ( of ( ( the ( Earth 's ) ) surface ) ) ) ( is ( covered ( by oceans ) ) ) ) ... ) ( ( ( 97 % ) ( of ( ( the ( Earth 's ) ) water ) ) ) ( is ( in ( the oceans ) ) ) ) ) ... )
(ROOT (S (S (NP (NP (CD 71) (NN %)) (PP (IN of) (NP (NP (DT the) (NN Earth) (POS 's)) (NN surface)))) (VP (VBZ is) (VP (VBN covered) (PP (IN by) (NP (NNS oceans)))))) (: ...) (S (NP (NP (CD 97) (NN %)) (PP (IN of) (NP (NP (DT the) (NN Earth) (POS 's)) (NN water)))) (VP (VBZ is) (PP (IN in) (NP (DT the) (NNS oceans))))) (. ...)))
71% of the Earth's surface is covered by oceans... 97% of the Earth's water is in the oceans...
(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)))))))