\begin{tikzpicture}[font=\Large]
 		 \begin{semilogyaxis}[
               width = 20cm,
               height = 10cm,
               %ymax = 100000,
    			ybar,
   			ymajorgrids = true,
   			ylabel = {Query Response Time (in ms)},
                %xlabel = {Queries},
    			symbolic x coords = {$Q_{0}$, $Q_{1}$,$Q_{2}$,$Q_{3}$,$Q_{4}$,$Q_{5}$,$Q_{6}$,$Q_{7}$,$Q_{8}$,$Q_{9}$},
    %bar width=5pt,
             %enlarge x limits=0.02,
    			scaled y ticks = true,
			legend pos= north west,
 legend cell align=left
   		]
   \addplot coordinates {($Q_{0}$, 927) ($Q_{1}$, 9974) ($Q_{2}$, 177) ($Q_{3}$, 31672) ($Q_{4}$, 68) ($Q_{5}$, 1037) ($Q_{6}$, 1756) ($Q_{7}$, 725) ($Q_{8}$, 171876) ($Q_{9}$, 2850)};


\addplot coordinates {($Q_{0}$, 3623) ($Q_{1}$, 157846) ($Q_{2}$, 1841) ($Q_{3}$, 199087) ($Q_{4}$, 266) ($Q_{5}$, 3176) ($Q_{6}$, 474) ($Q_{7}$, 3635906) ($Q_{8}$, 415252) ($Q_{9}$, 9893)};
		
\addplot coordinates {($Q_{0}$, 6121) ($Q_{1}$, 241390) ($Q_{2}$, 6053) ($Q_{3}$, 329311) ($Q_{4}$, 27) ($Q_{5}$, 15532) ($Q_{6}$, 3007) ($Q_{7}$, 242) ($Q_{8}$, 36615810) ($Q_{9}$, 40180121)};
		
%result num: 
%69724 3304145 0 3204145 0 65419 2011 45 12765738 520
		
   		 \legend{gStore,Jena, Virtuoso}
  		\end{semilogyaxis}
\end{tikzpicture}