% Approximate sample template for CLEF 2007 Notebook Proceedings.
% It satisfies the following formatting instructions:
%
%  size:           A4
%  borders:        top, left right 2.5 cm ; bottom 3 cm
%  text size:    16 x 24 cm
%  author(s):      Times 10 pt centered
%  abstract:       Times 10 pt justified
%  body text:      Times 10 pt justified
%  Emphasis:       Times 10 pt italic
%  Title:          bold centered
%  Section Headings: bold left aligned
%  PLEASE DO NOT NUMBER THE PAGES
%
% I am not sure whether this template satisfies these other formatting
% instructions, but it should be close anyway:
%
%  title:                 Times 14 pt
%  Section Headings:      Times 12 pt

\documentclass[10pt]{article}
\usepackage{a4wide}

\setlength{\rightmargin}{2.5cm}
\setlength{\leftmargin}{2.5cm}

\makeatletter

\newcommand{\keywords}[1]{
\subsection*{Keywords}
#1}

\newcommand{\terms}[1]{
\subsection*{General Terms}
#1}


\newcount\catcount
\global\catcount=1

\def\category#1#2#3{%
\ifnum\catcount=1
\subsection*{Categories and Subject Descriptors}
\advance\catcount by 1\else{\unskip; }\fi
    \@ifnextchar [{\@category{#1}{#2}{#3}}{\@category{#1}{#2}{#3}[]}%
}

\def\@category#1#2#3[#4]{%
    \begingroup
        \let\and\relax
            #1 [\textbf{#2}]%
            \if!#4!%
                \if!#3!\else : #3\fi
            \else
                :\space
                \if!#3!\else #3\kern\z@---\hskip\z@\fi
                \textit{#4}%
            \fi
    \endgroup
}


\makeatother

\title{{\bf The Title of Your CLEF 2007 Contribution}}
\author{{\normalsize This is the author}\\
        {\normalsize This is the affiliation} \\
        {\normalsize {\tt e-mail@address}}}
\date{}

\pagestyle{empty}

\begin{document}
\maketitle
\thispagestyle{empty}
\begin{abstract}
\normalsize\noindent This is the abstract. The abstract should be
as complete as possible. It should provide the main details of
your experiments including tasks performed, approach used,
resources employed, results obtained. The abstract should not
exceed 250 words. The full Working Notes will be prepared in
digital form only. We will extract the abstract from the text of
your paper and will print a separate Book of Abstracts for
distribution at the Workshop. Do not lock or password protect your
pdf file.

\end{abstract}

% % metadata
% % definitions taken from ACM style file
\category{H.3}{Information Storage and Retrieval}{H.3.1 Content Analysis
  and Indexing; H.3.3 Information Search and Retrieval; H.3.4 Systems
  and Software; H.3.7 Digital Libraries}
\category{H.2.3}{Database Managment}{Languages}[Query Languages]

\terms{Measurement, Performance, Experimentation}

\keywords{Question answering, Questions beyond factoids}

% % %

\section{Introduction}
Consult http://www.acm.org/class/1998/ for details on  assigning
categories, terms, and keywords to your paper. The above are only
examples.


\section{Etcetera}
Lorem ipsum dolor sit amet, consectetuer adipiscing elit.  Nullam ac
dolor.  Sed lectus nisl, tempus sit amet, porttitor imperdiet,
sollicitudin vitae, eros.  In diam nulla, pharetra eget, tincidunt sit
amet, viverra eget, odio.  Cras rutrum, felis ac consequat viverra,
ante purus elementum pede, eu suscipit lacus ligula et pede.  Morbi in
massa.  Cras risus.  Nam commodo turpis nec metus.  Nunc a nibh
sodales massa posuere interdum.  Maecenas sagittis consectetuer magna.
Aenean vel turpis.  Sed et sapien.  Nam elit.

Praesent at velit in erat congue aliquam.  Praesent vulputate urna
eget massa.  Curabitur et sapien.  Quisque lobortis auctor erat.  Sed
semper turpis vel mauris.  Nam aliquet tincidunt dui.  Maecenas
malesuada, est sed elementum imperdiet, sapien massa dapibus mi, sed
commodo libero metus vel tellus.  Ut pulvinar sem sed ligula.
Phasellus quis ante.  Lorem ipsum dolor sit amet, consectetuer
adipiscing elit.  Donec lobortis, arcu sit amet aliquet eleifend, nunc
nulla bibendum magna, sit amet semper dolor ante at neque.  Vivamus
adipiscing tincidunt nunc.  Aenean felis.  Proin vel ligula sed tellus
luctus nonummy.  Nullam mauris mauris, lacinia quis, lacinia a,
dignissim nec, tellus.  Etiam nunc.  Nulla laoreet ornare turpis.
Suspendisse imperdiet eros nec risus.  Integer nulla.  Suspendisse
lobortis congue wisi.

\bibliographystyle{plain}
\bibliography{yours}


\end{document}