\begin{figure*}[t!]
    \centering
    \begin{subfigure}[t]{0.5\textwidth}
        \centering
        \includegraphics[height=1.8in]{figs/fig_files/t5-base-spider.pdf}
        \caption{\footnotesize Training Curve of T5 on SPIDER}
    \end{subfigure}%
    ~ 
    \begin{subfigure}[t]{0.5\textwidth}
        \centering
        \includegraphics[height=1.8in]{figs/fig_files/t5-base-geoquery.pdf}
        \caption{\footnotesize Training Curve of T5 on GEOQUERY}
    \end{subfigure}
    \caption{Training curve of T5-base on different splits of SPIDER and GEOQUERY.}
    \label{fig:training-curve}
\end{figure*}