\begin{figure*}[tb]
\centering 
    \begin{subfigure}{0.45\textwidth}
        \centering
        \includesvg[width=\textwidth]{figures/fnn_ngrams.svg}
        \caption{Total number of argumentation type n-grams in the PolitiFact dataset}
    \end{subfigure}
\hfill
    \begin{subfigure}{0.45\textwidth}
        \centering
        \includesvg[width=\textwidth]{figures/emi_ngrams.svg}
        \caption{Total number of argumentation type n-grams in the FakeNews-2018 dataset}
    \end{subfigure}
\caption{
    Total number of argumentation type n-grams for $n$ between 3 and 20.
    Credible news tend to have more variety than deceptive ones for the FakeNews-2018 dataset.
    The opposite effect can be seen in the PolitiFact dataset.
\label{fig:ngrams}
}

\end{figure*}