# Text flowing out in two column format [duplicate]

This is the code:

\documentclass[sttt]{svjour}

\usepackage{graphics}

\begin{document}
%
\title{Title}

\author{Author}
%
%
\institute{Institute}
%
\date{Received: date / Revised version: date}

\maketitle
%
\begin{abstract}
Like NSSTs, functional NSSTs also allow non-deterministic transitions, but produce the same
output string for every successful run on a given input. Like NSSTs, aaaa aa functional NSSTs also allow non-deterministic transitions, but produce the same
output string for every successful run on a given input.
\end{abstract}
%
\section{Introduction}
\label{intro}
Your text comes here. Separate text sections with
\section{Section title}
\label{sec:1}

\subsection{Subsection title}
\label{sec:2}

\end{document}


This is the output:

The text flowing out of the column due to hyphen. What is the solution to this?