\begin{tikzpicture}[>=stealth']
  \node[text width=5em, text ragged] at (0.5,3) {\bf Forms};
  \node[text width=20em, text ragged] at (6,3) {\bf Distributional Categories};
  
  \matrix[row sep=-\pgflinewidth,
  column sep=-\pgflinewidth,
  column 1/.style={nodes={text depth=0pt,text width=3.5em,align=right}}] at (0,0)
  {
    \node (bse) {$\mathrm{leap}$};     \\
    \node (s) {$\mathrm{leaps}$};    \\
    \node (ed) {$\mathrm{leaped}$};   \\
    \node (ed-2) {$\mathrm{leapt}$};   \\
    \node (ing) {$\mathrm{leaping}$};  \\
  };


  \matrix[row sep=-\pgflinewidth,
  %column sep=-\pgflinewidth,
  column 1/.style={nodes={text depth=0pt,text width=6em,text ragged}},
  column 2/.style={nodes={text depth=0pt,text width=10em,text ragged}}] at (6,0)
  {
    \node (e1) {$\textsf{Nom}_{\neg{3}}\to\textsf{Fin}$}; & \node {I leap.}; \\
    \node (e2) {$\textsf{Bse}$}; & \node {I/it might leap.}; \\
    \node (e3) {$\textsf{Nom}_3\to\textsf{Fin}$}; & \node {It leaps.}; \\
    \node (e5) {$\textsf{Nom}\to\textsf{Fin}$}; & \node {I/it leaped.}; \\
    \node (e6) {$\textsf{Prp}$}; & \node {I/it had leaped.}; \\
    \node (e5-2) {$\textsf{Nom}\to\textsf{Fin}$}; & \node {I/it leapt.}; \\
    \node (e6-2) {$\textsf{Prp}$}; & \node {I/it had leapt.}; \\
    \node (e4) {$\textsf{Psp}$}; & \node {I/it were leaping.}; \\
  };

  \draw[->] (bse.east) to (e1.west);
  \draw[->] (bse.east) to (e2.west);
  \draw[->] (s.east) to (e3.west);
  \draw[->] (ed.east) to (e5.west);
  \draw[->] (ed.east) to (e6.west);
  \draw[->] (ed-2.east) to (e5-2.west);
  \draw[->] (ed-2.east) to (e6-2.west);
  \draw[->] (ing.east) to (e4.west);
\end{tikzpicture}

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