\begin{figure}
    \begin{center}

    \subfigure[Results for criteria: ``This text is well written.'']{
        \begin{tikzpicture}
            \begin{axis}[
                    xbar stacked,
                    legend style={
                    legend columns=4,
                        at={(xticklabel cs:0.5)},
                        anchor=north,
                        draw=none
                    },
                    ytick=data,
                    axis y line*=none,
                    axis x line*=bottom,
                    tick label style={font=\footnotesize},
                    legend style={font=\footnotesize},
                    label style={font=\footnotesize},
                    xtick={-100,-75,-50,-25,0,25,50,75,100},
                    width=.9\textwidth,
                    bar width=6mm,
                    xlabel={\%},
                    yticklabels={Retrieval, \cookiis, \textsc{Craqpot}},
                    xmin=-100,
                    xmax=100,
                    area legend,
                    y=8mm,
                    enlarge y limits={abs=0.625},
                    restrict x to domain*=:0,
                ]
                \addplot coordinates {(0,2) (0,1) (0,0)};
                \addplot[yellow,fill=yellow,postaction={pattern=grid}] coordinates
                {(-8,2) (-17,1) (-7,0)};
                \addplot[red,fill=red,postaction={pattern=north east lines}] coordinates
                {(-8,2) (0,1) (-7,0)};
                \addplot[Green,fill=Green,postaction={pattern=dots}] coordinates
                {(0,2) (43,1) (40,0)};
                \addplot[blue,fill=blue,postaction={pattern=north west lines}] coordinates
                {(83,2) (39,1) (47,0)};
            \end{axis}  
            \begin{axis}[
                    xbar stacked,
                    legend style={
                    legend columns=4,
                        at={(xticklabel cs:0.5)},
                        anchor=north,
                        draw=none
                    },
                    ytick=data,
                    axis y line*=none,
                    axis x line*=bottom,
                    tick label style={font=\footnotesize},
                    legend style={font=\footnotesize},
                    label style={font=\footnotesize},
                    xtick={-100,-75,-50,-25,0,25,50,75,100},
                    width=.9\textwidth,
                    bar width=6mm,
                    xlabel={\%},
                    yticklabels={Retrieval, \cookiis, \textsc{Craqpot}},
                    xmin=-100,
                    xmax=100,
                    area legend,
                    y=8mm,
                    enlarge y limits={abs=0.625},
                    restrict x to domain*=0:,
                ]
                \addplot[red,color=red,fill=red,postaction={pattern=north east lines}] coordinates
                {(-8,2) (0,1) (-7,0)};
                \addplot[yellow,fill=yellow,postaction={pattern=grid}] coordinates
                {(-8,2) (-17,1) (-7,0)};
                \addplot[Green,fill=Green,postaction={pattern=dots}] coordinates
                {(0,2) (43,1) (40,0)};
                \addplot[blue,fill=blue,postaction={pattern=north west lines}] coordinates
                {(83,2) (39,1) (47,0)};
                \legend{strongly disagree, disagree, agree, strongly agree}
            \end{axis}  
        \end{tikzpicture}
	}

	\vspace{10mm}
	\subfigure[Results for criteria: ``This recipe seems tasty.'']{
        \begin{tikzpicture}
            \begin{axis}[
                    xbar stacked,
                    legend style={
                    legend columns=4,
                        at={(xticklabel cs:0.5)},
                        anchor=north,
                        draw=none
                    },
                    ytick=data,
                    axis y line*=none,
                    axis x line*=bottom,
                    tick label style={font=\footnotesize},
                    legend style={font=\footnotesize},
                    label style={font=\footnotesize},
                    xtick={-100,-75,-50,-25,0,25,50,75,100},
                    width=.9\textwidth,
                    bar width=6mm,
                    xlabel={\%},
                    yticklabels={Retrieval, \cookiis, \textsc{Craqpot}},
                    xmin=-100,
                    xmax=100,
                    area legend,
                    y=8mm,
                    enlarge y limits={abs=0.625},
                    restrict x to domain*=:0,
                ]
                \addplot coordinates {(0,2) (0,1) (0,0)};
                \addplot[yellow,fill=yellow,postaction={pattern=grid}] coordinates
                {(-8,2) (-13,1) (-13,0)};
                \addplot[red,fill=red,postaction={pattern=north east lines}] coordinates
                {(0,2) (-7,1) (0,0)};
                \addplot[Green,fill=Green,postaction={pattern=dots}] coordinates
                {(17,2) (48,1) (53,0)};
                \addplot[blue,fill=blue,postaction={pattern=north west lines}] coordinates
                {(75,2) (30,1) (33,0)};
            \end{axis}  
            \begin{axis}[
                    xbar stacked,
                    legend style={
                    legend columns=4,
                        at={(xticklabel cs:0.5)},
                        anchor=north,
                        draw=none
                    },
                    ytick=data,
                    axis y line*=none,
                    axis x line*=bottom,
                    tick label style={font=\footnotesize},
                    legend style={font=\footnotesize},
                    label style={font=\footnotesize},
                    xtick={-100,-75,-50,-25,0,25,50,75,100},
                    width=.9\textwidth,
                    bar width=6mm,
                    xlabel={\%},
                    yticklabels={Retrieval, \cookiis, \textsc{Craqpot}},
                    xmin=-100,
                    xmax=100,
                    area legend,
                    y=8mm,
                    enlarge y limits={abs=0.625},
                    restrict x to domain*=0:,
                ]
                \addplot[red,fill=red,postaction={pattern=north east lines}] coordinates
                {(0,2) (-7,1) (0,0)};
                \addplot[yellow,fill=yellow,postaction={pattern=grid}] coordinates
                {(-8,2) (-13,1) (-13,0)};
                \addplot[Green,fill=Green,postaction={pattern=dots}] coordinates
                {(17,2) (48,1) (53,0)};
                \addplot[blue,fill=blue,postaction={pattern=north west lines}] coordinates
                {(75,2) (30,1) (33,0)};
                \legend{strongly disagree, disagree, agree, strongly agree}
            \end{axis}  
        \end{tikzpicture}
	}

	\vspace{10mm}
	\subfigure[Results for criteria: ``This recipe fits my query.'']{
        \begin{tikzpicture}
            \begin{axis}[
                    xbar stacked,
                    legend style={
                    legend columns=4,
                        at={(xticklabel cs:0.5)},
                        anchor=north,
                        draw=none
                    },
                    ytick=data,
                    axis y line*=none,
                    axis x line*=bottom,
                    tick label style={font=\footnotesize},
                    legend style={font=\footnotesize},
                    label style={font=\footnotesize},
                    xtick={-100,-75,-50,-25,0,25,50,75,100},
                    width=.9\textwidth,
                    bar width=6mm,
                    xlabel={\%},
                    yticklabels={Retrieval, \cookiis, \textsc{Craqpot}},
                    xmin=-100,
                    xmax=100,
                    area legend,
                    y=8mm,
                    enlarge y limits={abs=0.625},
                    restrict x to domain*=:0,
                ]
                \addplot coordinates {(0,2) (0,1) (0,0)};
                \addplot[yellow,fill=yellow,postaction={pattern=grid}] coordinates
                {(0,2) (-19,1) (-7,0)};
                \addplot[red,fill=red,postaction={pattern=north east lines}] coordinates
                {(0,2) (-29,1) (0,0)};
                \addplot[Green,fill=Green,postaction={pattern=dots}] coordinates
                {(83,2) (19,1) (87,0)};
                \addplot[blue,fill=blue,postaction={pattern=north west lines}] coordinates
                {(17,2) (29,1) (7,0)};
            \end{axis}  
            \begin{axis}[
                    xbar stacked,
                    legend style={
                    legend columns=4,
                        at={(xticklabel cs:0.5)},
                        anchor=north,
                        draw=none
                    },
                    ytick=data,
                    axis y line*=none,
                    axis x line*=bottom,
                    tick label style={font=\footnotesize},
                    legend style={font=\footnotesize},
                    label style={font=\footnotesize},
                    xtick={-100,-75,-50,-25,0,25,50,75,100},
                    width=.9\textwidth,
                    bar width=6mm,
                    xlabel={\%},
                    yticklabels={Retrieval, \cookiis, \textsc{Craqpot}},
                    xmin=-100,
                    xmax=100,
                    area legend,
                    y=8mm,
                    enlarge y limits={abs=0.625},
                    restrict x to domain*=0:,
                ]
                \addplot[red,fill=red,postaction={pattern=north east lines}] coordinates
                {(0,2) (-29,1) (0,0)};
                \addplot[yellow,fill=yellow,postaction={pattern=grid}] coordinates
                {(0,2) (-19,1) (-7,0)};
                \addplot[Green,fill=Green,postaction={pattern=dots}] coordinates
                {(83,2) (19,1) (87,0)};
                \addplot[blue,fill=blue,postaction={pattern=north west lines}] coordinates
                {(17,2) (29,1) (7,0)};
                \legend{strongly disagree,disagree, agree, strongly agree}
            \end{axis}  
        \end{tikzpicture}
	}


    \end{center}
    \caption{Detailed user evaluations.}
    \label{fig:detailed-results}
\end{figure}