\begin{table}[!t]
    \centering
    \small
    \begin{tabu}{l|cc|c}
    Source         & \multicolumn{2}{c|}{\textsc{train}\textsubscript{json}}  & \textsc{test}\textsubscript{json} \\
    \hline
    Part                & \texttt{train} &   \texttt{dev}  &  \texttt{test} \\
    \hline
    \dState{}   (total)                   & 12144 & 	1475 &  
    \\
    \hspace{3mm}\textsc{neutral}            & 5299  & 	630     &  \textcolor{gray}{.}   \\
    \hspace{3mm}\textsc{joy}                & 2047  & 	254     &  \textcolor{gray}{.} \\
    \hspace{3mm}\textsc{surprise}           & 1656  & 	184     &  \textcolor{gray}{.} \\
    \hspace{3mm}\textsc{anger}              & 1423  & 	192    &  \textcolor{gray}{.} \\
    \hspace{3mm}\textsc{sadness}            & 1011  & 	136     &  \textcolor{gray}{.} \\
    \hspace{3mm}\textsc{disgust}            & 372   & 	42     &  \textcolor{gray}{.} \\
    \hspace{3mm}\textsc{fear}               & 336   & 	37     &  \textcolor{gray}{.} \\
    \hline
    \dCause{} (total)                      & 30445 & 	3612 & 	15794                 \\
    \hspace{3mm}\textsc{neutral}             & 23750&  2765 	     &  15794                 \\
    \hspace{3mm}\textsc{joy}                 & 2111 &  279  	     &  \textcolor{gray}{--}   \\
    \hspace{3mm}\textsc{surprise}            & 1725 &  202  	     &  \textcolor{gray}{--}   \\
    \hspace{3mm}\textsc{anger}               & 1307  &  174  	     &  \textcolor{gray}{--}   \\
    \hspace{3mm}\textsc{sadness}             &932   &  120  	     &  \textcolor{gray}{--}   \\
    \hspace{3mm}\textsc{disgust}             & 387  &   47  	     &  \textcolor{gray}{--}   \\
    \hspace{3mm}\textsc{fear}                & 233   &   25  	     &  \textcolor{gray}{--}   \\
    \hline
    \end{tabu}
    \caption{Statistics of the composed datasets \dState{} and \dCause{} from the publicly available competition data, for the two training methodology stages respectively; statistics is listed for $k=3$.}
    \label{tab:datasets}
\end{table}