\begin{table}[t]
\centering
\small
\setlength{\tabcolsep}{4pt}
\begin{tabular}{p{2.2cm} p{2.2cm} c c}
\hline
\textbf{Language Pair} & \textbf{Training Data} & \textbf{BLEU} & \textbf{ChrF++} \\
\hline
Guarani--Spanish & Curated-only &
\textit{[30.2]} & \textit{[42]} \\

Guarani--Spanish & Curated+Synthetic &
\textit{[34]} & \textit{[44]} \\
\hline
$\Delta$ & -- &
\textit{[+4]} & \textit{[+2]} \\
\hline
\end{tabular}
\caption{Validation results for Guarani--Spanish translation with and without synthetic data augmentation.}
\label{tab:main_results}
\end{table}
