\section{Conclusion and Future Work}
\label{sec:concl}

{\ARRAU} is a long-term project to push forward the state of the art in anaphoric annotation.
During each phase of the annotation we discovered new issues that were then corrected in the subsequent version.
So while we think the newest release is much improved over {\ARRAU} 2, a number of issues were identified in the last round of annotation, that we hope to correct in future releases. 
They include in particular several issues related to reference in dialogue (e.g., how to annotate repairs) as well as more complex forms of discourse deixis. 

% TO BE COMPLETED
%
% Remaining issues:

% \begin{itemize}
%     \item Scope should be explicitly annotated
%     \item Associative discourse deixis ( already done in the Minecraft corpus annotatio0n)
%     \item semantic vs pragmatic identification of coreference
%     \item objects that change during the dialogue (e.g., the plan)
%     \item Remaining  dialogue issues: repair? 
%     \item Deixis: no guidelines, but a first proposal was made by Loaiciga et al, and now being adopted for the Minecraft dialogue annotation
% \end{itemize}

% %\todo{This Section to be rewritten}

% {\NLP} research is driven not just by the availability of resources providing the desired information, but also by the existence of standardized scorers allowing researchers to evaluate their systems in a reliable way.
% In this paper
% we presented  the new Universal Anaphora scorer designed to evaluate models carrying out a fuller form of anaphoric interpretation.
% The scorer was tested  in the {\CODICRAC} shared task proving reliable and able to provide insight in the performance of participating systems; 
% we hope that it will encourage research in so-far under-researched aspects of anaphora.
% Future plans include extending the scorer to cover discontinuous mentions--mentions broken into separate segments of text, as founds e.g., in completions which are  common in dialogue \CITE{poesio&rieser:completions}--and then to cover cases of disagreement on anaphoric interpretation, which are particularly common in dialogue \cite{poesio&artstein:ACL-ANNO-05} but can be found in all genres and are very numerous in  the \textit{Phrase Detectives} corpus \cite{poesio-et-al:NAACL19}.