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In this article, we construct explicitly certain moonshine type vertex operator algebras generated by a set of Ising vectors $I$ such that   (1) for any $e\neq f\in I$, the subVOA $\mathrm{VOA}(e,f)$ generated by $e$ and $f$ is isomorphic to either $U_{2B}$ or $U_{3C}$; and   (2)the subgroup generated by the corresponding Miyamoto involutions $\{\tau_e|\,e\in I\}$ is isomorphic to the Weyl group of a root system of type $A_n$, $D_n$, $E_6$, $E_7$ or $E_8$.   The structures of the corresponding vertex operator algebras and their Griess algebras are also studied. In particular, the central charge of these vertex operator algebras are determined.

Weyl groups and vertex operator algebras generated by Ising vectors satisfying the (2B, 3C) condition