\node [anchor=south] (b16) at ([yshift=.1cm]b13.north) {\textcolor{violet}{$x=5$}};
\node [anchor=south] (b16) at ([yshift=.1cm]b13.north) {\textcolor{violet}{$\mathbf{x}=5$}};
\node (b17) at (b16-|b12) {$x=6$};
\node (b17) at (b16-|b12) {$\mathbf{x}=6$};
\node (b18) at (b16-|b15) {(eos)};
\node (b18) at (b16-|b15) {(eos)};
\node (b19) at ($1/2*(b17)+1/2*(b18)$) {$\cdots$};
\node (b19) at ($1/2*(b17)+1/2*(b18)$) {$\cdots$};
\node (b20) at (b16-|b14) {$x=4$};
\node (b20) at (b16-|b14) {$\mathbf{x}=4$};
\node [anchor=north] (btitle) at ($1/2*(b14.south)+1/2*(b15.south)$){$P^t(\cdot|x,y_{<i})$};
\node [anchor=north] (btitle) at ($1/2*(b14.south)+1/2*(b15.south)$){$\mathrm{Pr}_{\mathrm{tea}}(\cdot|\textcolor{blue}{\mathbf{x}},\textcolor{orange}{\mathbf{y}_{<i}})$};
\end{scope}
\end{scope}
\begin{scope}[yshift=-3.5cm]
\begin{scope}[yshift=-3.5cm]
\node [draw=orange,fill=orange!5,rounded corners,minimum width=6.5cm,minimum height=3cm] (b2) at (0,0) {};
\node [draw=black,fill=white,rounded corners,minimum width=6.5cm,minimum height=3cm] (b2) at (0,0) {};
\node [anchor=north,text width=6.4cm,align=center] (b21) at ([yshift=-0.1cm]b2.north)
\node [anchor=north,text width=6.4cm,align=center] (b21) at ([yshift=-0.1cm]b2.north)
{Student's next-token distribution given \\ the same state\\${\textcolor{blue}{x},\textcolor{orange}{y_{<i}}}$};
{Student's next-token distribution \\ given the same state ${\textcolor{blue}{\mathbf{x}},\textcolor{orange}{\mathbf{y}_{<i}}}$};
\node [anchor=south] (b26) at ([yshift=.1cm]b24.north) {$x=4$};
\node [anchor=south] (b26) at ([yshift=.1cm]b24.north) {$\mathbf{x}=4$};
\node (b27) at (b26-|b22) {$x=6$};
\node (b27) at (b26-|b22) {$\mathbf{x}=6$};
\node (b28) at (b26-|b25) {(eos)};
\node (b28) at (b26-|b25) {(eos)};
\node (b29) at ($1/2*(b27)+1/2*(b28)$) {$\cdots$};
\node (b29) at ($1/2*(b27)+1/2*(b28)$) {$\cdots$};
\node (b20) at (b26-|b23) {\textcolor{violet}{$x=5$}};
\node (b20) at (b26-|b23) {\textcolor{violet}{$\mathbf{x}=5$}};
\node [anchor=north] (btitle) at ($1/2*(b24.south)+1/2*(b25.south)$){$P^s_\theta(\cdot|\textcolor{orange}{x},\textcolor{orange}{y_{<i}})$};
\node [anchor=north] (btitle) at ($1/2*(b24.south)+1/2*(b25.south)$){$\mathrm{Pr}_{\theta}(\cdot|\textcolor{blue}{\mathbf{x}},\textcolor{orange}{\mathbf{y}_{<i}})$};