\begin{figure*}[htb]
  \centering
  \begin{subfigure}{0.32\textwidth}
    \includegraphics[width=\linewidth]{assets/bribri-combined-strategies.pdf}
    \caption{Bribri}
  \end{subfigure}
  \hfill
  \begin{subfigure}{0.32\textwidth}
    \includegraphics[width=\linewidth]{assets/guarani-combined-strategies.pdf}
    \caption{Guaran\'{i}}
  \end{subfigure}
  \hfill
  \begin{subfigure}{0.32\textwidth}
    \includegraphics[width=\linewidth]{assets/maya-combined-strategies.pdf}
    \caption{Maya}
  \end{subfigure}
  \caption{chrF results for combinations of strategies.}
  \label{fig:combined-strategies}
\end{figure*}