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We show that several WZW coset models can be obtained by applying O(d,d)symmetry transformations (referred to as twisting) on WZW models. This leads toa conjecture that WZW models gauged by U(1)^n subgroup can be obtained bytwisting (ungauged) WZW models. In addition, a class of solutions that describecharged black holes in four dimensions is derived by twisting SL(2,R)\timesSU(2) WZW.Comment: 22 page

Coset models obtained by twisting WZW models and stringy charged black holes in four dimensions