# [Tex/LaTex] How to add acknowledgments in the title (first slide) in a beamer presentation

beamerpresentationstitles

I am making a beamer presentation, and want to include text for acknowledgments. I use the tags for the title author institute, but now I want to add more text. Is there a tage for the acknowledgements? Is there a nice way to do so? Below is my code which does not compile due to the acknowledgment text.

\documentclass{beamer}
\usetheme{Warsaw}
\setbeamertemplate{footline}[page number]
\setbeamercovered{invisible}
\usepackage{graphicx}
\logo{\includegraphics[height=1.2cm]{LOGO}}
\title[Short title of the talk]{cool title}
\author{name1 and name2}
\institute[]
{
University of River, Big City. UK\\
\medskip
{\emph{first.last@bigcity.ac.uk}}
}
\date{\today}
Acknowledgement: This work was performed within the
Mathematics of axiom1, with grant ref.
x12.
\begin{document}
\begin{frame}
\titlepage
\end{frame}


Without the text for the acknowledgments, the presentation compiles. What options are available?

\date{\today\\[2em]