 \begin{tabular}{cccccc}

 \begin{tikzpicture}[scale=2, font=\sffamily, rotate=0]\small
    \draw(0,0) node{\nuTree{1,1,2,0}{1,1,2,0}{0.5}{}{}{}{}};
   \node[scale=1] () at (0,-0.6) {$y_1^{ag}=0$};
   \node[scale=1, red] () at (-.7,.4) {$P_1^{ag}$};
   \node[scale=1, black] () at (.7,.4) {$T_{ag}$};
   \draw[red, - , line width=1mm, dotted] (-.5,.1) -- (-.5,.35);
\end{tikzpicture} 
& 
\begin{tikzpicture}[scale=2, font=\sffamily, rotate=0]\small
    \draw(0,0) node{\nuTree{1,1,2,0}{1,1,2,0}{0.5}{}{}{}{}};
   \draw[red, - , line width=1mm, dotted] (-.5,-.1) -- (-.5,.35);
   \node[scale=1] () at (0,-0.6) {$y_2^{ag}=0$};
   \node[scale=1, red] () at (-.7,.4) {$P_2^{ag}$};
   \node[scale=1, black] () at (.7,.4) {$T_{ag}$};
\end{tikzpicture} 
& 
\begin{tikzpicture}[scale=2, font=\sffamily, rotate=0]\small
    \draw(0,0) node{\nuTree{1,1,2,0}{1,1,2,0}{0.5}{}{}{}{}};
    \draw[red, - , line width=1mm, dotted] (-.5,-.35) -- (-.5,.35);
   \node[scale=1] () at (0,-0.6) {$y_3^{ag}=0$};
   \node[scale=1, red] () at (-.7,.4) {$P_3^{ag}$};
   \node[scale=1, black] () at (.7,.4) {$T_{ag}$};
\end{tikzpicture} 


&

\begin{tikzpicture}[scale=2, font=\sffamily, rotate=0]\small
    \draw[fill=orange, opacity=0.3, draw=none] (-0.5,0.12) rectangle (0.25,.38);
    \draw(0,0) node{\nuTree{1,1,2,0}{0,1,1,2}{0.5}{}{}{}{}};
   \node[scale=1] () at (0,-0.6) {$y_1=3$};
   \node[scale=1, red] () at (-.7,.4) {$P_1$};
   \node[scale=1, black] () at (.7,.4) {$T$};
   \draw[red, - , line width=1mm, dotted] (.22,.1) -- (.22,.35) --(-.5,.35);
\end{tikzpicture} 
& 
\begin{tikzpicture}[scale=2, font=\sffamily, rotate=0]\small
    \draw[fill=blue, opacity=0.3, draw=none] (-0.25,0.38) rectangle (-0.5,-0.12);
    \draw(0,0) node{\nuTree{1,1,2,0}{0,1,1,2}{0.5}{}{}{}{}};
   \draw[red, - , line width=1mm, dotted] (-.27,-.15) -- (-.27,0.35)-- (-.5,0.35);
   \node[scale=1] () at (0,-0.6) {$y_2=2$};
   \node[scale=1, red] () at (-.7,.4) {$P_2$};
   \node[scale=1, black] () at (.7,.4) {$T$};
\end{tikzpicture} 
& 
\begin{tikzpicture}[scale=2, font=\sffamily, rotate=0]\small
    \draw[fill=green, opacity=0.3, draw=none] (-0.25,0.38) rectangle (-0.5,-0.37);
    \draw(0,0) node{\nuTree{1,1,2,0}{0,1,1,2}{0.5}{}{}{}{}};
    \draw[red, - , line width=1mm, dotted] (-.27,-.4) -- (-.27,0.35)-- (-.5,0.35);
   \node[scale=1] () at (0,-0.6) {$y_3=3$};
   \node[scale=1, red] () at (-.7,.4) {$P_3$};
   \node[scale=1, black] () at (.7,.4) {$T$};
\end{tikzpicture} 

\end{tabular}