\begin{center}
  \def\tgtwidth{0.8\textwidth}
  \begin{tikzpicture}
    \tikzstyle{ynode} = [draw,rounded corners=4pt, minimum width=\tgtwidth,inner sep=4pt,align=left,text width=\tgtwidth]
    \begin{scope}
      \node (input) at (0,0) {$\mathbf{x}$};
      \node [ynode, anchor=west] (note) at ([xshift=.2cm]input.east) {
        \begin{varwidth}{\textwidth}
          \scriptsize{Give me three tips to improve my accuracy in solving math problems.}
        \end{varwidth}
      };
      \node [ynode,anchor=north west] (output1) at ([yshift=-.2cm]note.south west) {
        \scriptsize{Improving accuracy in solving math problems is crucial for success in mathematics. Here are three tips that can help: \\
            1.Practice regularly... \\
            2.Understand the concepts... \\
          \ctext[RGB]{255,204,204}{3.Double-check your work...any-one can significantly enhance their math problem-solving abilities.} \\
          \textbf{\{Total Tokens: 160, Reward: 16\}}}
      };
      \node [anchor=east](y1) at ([xshift=-.2cm]output1.west) {$\mathbf{y}_1$};
      \node [ynode,anchor=north] (output2) at ([yshift=-.2cm]output1.south) {
        \scriptsize{Improving math accuracy requires careful attention to detail, strategic problem-solving techniques, and consistent practice. Here are three tips: \\
            1.Avoid rushing and read carefully... \\
            2.Use estimation to validate answers... \\
          \ctext[RGB]{255,204,204}{3.Double-check your work...any-one can significantly enhance their math problem-solving abilities.} \\
          \textbf{\{Total Tokens: 750, Reward: 75\}}}
      };
      \node [anchor=east](y2) at ([xshift=-.2cm]output2.west) {$\mathbf{y}_2$};
    \end{scope}
  \end{tikzpicture}
\end{center}
