\begin{table}[ht]
\begin{center}
\begin {tabular}{|l|r|r|r|}
\hline
Datasets	& Train 	& Dev & Test\\
\hline
\# lines & 9,549	& 3,000 & 3,000\\
\hline
\# words 	& 144,158	& 45,047  &  51,478\\
\hline
\# characters & 1,822,547 	& 570,592  & 552,871\\
\hline
\end{tabular}
\end{center}
\caption{\label{tab:label} Size of the Train, Dev and Test sets}
 
\end{table}