I want to put a box around the last item of the main itemizing structure (the item starting with "Set ...") of this slide. Any help?
\documentclass{beamer}
\usepackage{etex}
\usepackage{graphicx}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{verbatim}
\usepackage{xcolor}
\usepackage{bbm}
\usepackage{framed}
\usepackage{subfig}
\usepackage{tabularx}
\usepackage{caption}
\usepackage{enumerate}
\usepackage{mathrsfs}
\usepackage{appendixnumberbeamer}
\usepackage{bigints}
\usepackage{mathabx}
\usepackage[gen]{eurosym}
\usepackage[all]{xy}
\newcommand{\Def}{\color[rgb]{0,0,0}} %Black%
\newcommand{\Blue}{\color[rgb]{0,0,1}}
\newcommand{\Dblue}{\color[rgb]{0,0,.6}}
\newcommand{\Dred}{\color[rgb]{.6,0,0}}
%--------------------------------------------------------------
\title{Hello}
\author{blah1}
\vfill
\date{today}
%--------------------------------------------------------------
%--------------------------------------------------------------
\begin{document}
\begin{frame}{Strategy}
\small
\begin{itemize}
\item Blah1
\vspace{0.2cm}
\item Blah2\\
Blah3
\vspace{0.2cm}
\item Other assumptions on {\Blue A} I play with:
\begin{enumerate}[i]
\item Blah1\\
Blah2
\item Blah3
\item Blah4
\end{enumerate}
\vspace{0.2cm}
\item Characterisations of B
\vspace{0.2cm}
\item {\Blue Set} by applying the AU bounds to {\Blue $E$} {\color{orange}{$\forall j\in \mathcal{N}$}} {\color{magenta}{(for any $j\in \mathcal{N}$)}}:
\begin{itemize}
\item Computational tractability from T Theorem and constructive algorithm of P
\item Equivalent to the region obtained by applying the PO bounds to {\Blue $G$} under {\color{orange}{i}} {\color{magenta}{(i-iii)}}
\end{itemize}
\end{itemize}
\end{frame}
\end{document}
