ON GENERIC SUBMANIFOLDS WITH SASAKIAN STRUCTURE OF $S^n(\frac{1}{\sqrt{2}})\;{\times}\;S^n(\frac{1}{\sqrt{2}})$

Let M be a generic submanifold of $S^n\;{\times}\;S^n$. If M admits an Sasakian structure, then M is a Brieskorn manifold.