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The large data sample being recorded with the Belle detector at the$\Upsilon$(5S) energy provides a unique opportunity to study theless-well-known $B_s^{0}$ meson decays. Following our recent measurement of$B_s^{0}\to D_s^{-}\pi^{+}$ in a sample of 23.6 fb$^{-1}$, we extend theanalysis to include decays with photons in the final state. Using the samesample, we report the first observation of three other dominant exclusive$B_s^{0}$ decays, in the modes $B_s^{0}\to D_s^{*-}\pi^+$, $B_s^{0}\toD_s^{-}\rho^+$ and $B_s^{0}\to D_s^{*-}\rho^+$. We measure their respectivebranching fractions and, using helicity-angle distributions, the longitudinalpolarization fraction of the $B_s^{0}\to D_s^{*-}\rho^+$ decay.  We also present a measurement of the branching fractions for the decays$B_s^{0} \to D_s^{(*)+}D_s^{(*)-}$. In the heavy quark limit, this branchingfraction is directly related to the width difference between the $B_s$ CP-evenand CP-odd eigenstates.

Observation of $B_s^{0} \to D_s^{*-} \pi^{+}$, $B_s^{0} \to D_s^{(*)-}  \rho^{+} $ and $B_s^{0} \to D_s^{(*)+} D_s^{(*)-}$ and Estimate of $\Delta  \Gamma_{CP}$ at Belle