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\begin{table}[tbp]
  \caption{Characteristics of the Crawl~3 batch of AA input data}
  \begin{center}
    \begin{tabular}{llr}
      \hhline{===}
      \multicolumn{3}{c}{\textbf{Input from SC to AA}}\\
      \hhline{---}
      \multicolumn{2}{l}{Number of \texttt{.arc.gz} files{\slugc}}& 6 \\
      \multicolumn{2}{l}{Total compressed size} & 2.59~GB\\
      \multicolumn{2}{l}{Number of documents} & 436~825 \\
      \hhline{===}
      \multicolumn{3}{c}{\textbf{Preprocessing results}}\\
      \hhline{---}
      Suppressed documents:{\slugc}& duplicates & 333~166\\
      & with unwanted provider IDs & 5~313\\
      & faulty XML & 21\\
      \hhline{---}
      Documents to analyse:{\slugc}
      & HTML &     40~934\\
      & WSDL &     33~544\\
      & abstract & 23~847\\
      & total &    98~325\\
%       \hhline{---}
%       \multicolumn{2}{l}{Providers} &  8~078\\
%       \multicolumn{2}{l}{Services}  & 23~879\\
      \hhline{===}
    \end{tabular}
  \end{center}
  \label{tab:crawl3-combined}
  %\label{tab:crawl3}
  %\label{tab:crawl3-pre}
\end{table}
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