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(1/4)(G+G)t^4+++(V+G)t^3+++(P+G+++V+V+-+s^2)t^2+++2(P+V)t+++P+P+=+0+for+t
(1/4)(G+G)t^4+++(V+G)t^3+++(P+G+++V+V+-+s^2)t^2+++2(P+V)t+++P+P+=+0+for+t
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