Let $\Model_1 = \{p=\F, q=\T, r=\F\}$ and $\Model_2 = \{p=\F, q=\F, r=\F\}$ and annotate the parse tree with in blue for $\Model_1$ and red for $\Model_2$. \begin{center} \begin{forest} for tree={circle, draw, minimum size=2em, inner sep=0pt, s sep=5mm, l sep=4mm} [$\imp$, label={\satUnsatAss{T}{F}} [$\lor$, label={\satUnsatAss{F}{T}} [$\imp$, label={\satUnsatAss{F}{T}} [$q$, label={\satUnsatAss{T}{F}}] [$\neg$, label={\satUnsatAss{T}{T}} [$p$, edge label={node[midway,right]{\satUnsatAss{F}{F}}} ] ] ] [$r$, label={\satUnsatAss{F}{F}}] ] [$\land$, label={\satUnsatAss{T}{F}} [$q$, label={\satUnsatAss{T}{F}}] [$\imp$, label={\satUnsatAss{T}{T}} [$r$, label={\satUnsatAss{F}{F}}] [$p$, label={\satUnsatAss{F}{F}}] ] ] ] \end{forest} \end{center}