( ( ( The distribution ) ( of ( ( the ( earth 's ) ) abundance ) ) ) ( ( is ( decided ( by humans ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN distribution)) (PP (IN of) (NP (NP (DT the) (NN earth) (POS 's)) (NN abundance)))) (VP (VBZ is) (VP (VBN decided) (PP (IN by) (NP (NNS humans))))) (. .)))
The distribution of the earth's abundance is decided by humans.
(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))))) (. .)))