1\subsection{Core results by question type}2\begin{table}[H]\centering\scriptsize3\caption{Synthetic family, core run, accuracy (\%) by question type (both pairs pooled; 95\,\% cluster-bootstrap CI).}4\adjustbox{max width=\textwidth}{\input{tables/table_qtype_core}}5\end{table}67\subsection{Attempt outcomes by method}8\begin{table}[H]\centering\scriptsize9\caption{All attempts of the core run by status (retries included).}10\input{tables/table_failures}11\end{table}1213\subsection{Exploratory: question types not covered by the core (A-004)}14\begin{figure}[H]\centering\includegraphics[width=\textwidth]{figA_qtypes_exploratory.pdf}15\caption{EXPLORATORY. Accuracy on negation, revision/precedence, temporal order, aggregation, unit conversion and unanswerable questions16(questions 6--15 of the 40 synthetic test documents) for a subset of methods; no confirmatory test attached.}\end{figure}17\begin{table}[H]\centering\scriptsize18\caption{EXPLORATORY question-type extension (\%, 95\,\% CI).}19\adjustbox{max width=\textwidth}{\input{tables/table_qtypes_exploratory}}20\end{table}2122\subsection{Question-access panels}23\begin{figure}[H]\centering\includegraphics[width=\textwidth]{figA_quality_vs_bytes_blind.pdf}24\caption{Question-blind conditions only (reusable messages).}\end{figure}25\begin{figure}[H]\centering\includegraphics[width=\textwidth]{figA_quality_vs_bytes_aware.pdf}26\caption{Question-aware conditions only (query-specific messages).}\end{figure}27