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A supersymmetric unified model is proposed in which one obtains light Higgs doublets as required for SU (2)× U (1) breaking whose colored partners remain heavy. Every interaction term allowed by the assumed symmetries is included and in this sense the model is natural. Both the gauge symmetry and a global U (1) symmetry are broken at a scale of⪆ 10 17 GeV and the effective low-energy gauge theory just corresponds to the supersymmetric standard model.