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%%  Ein Beispiel der DANTE-Edition
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%%  7. Auflage
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%%  Beispiel 32-01-5 auf Seite 703.
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%%  Copyright (C) 2016 Herbert Voss
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%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
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%%  See http://www.latex-project.org/lppl.txt for details.
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-jtree}
%StopShownPreambleCommands
\begin{document}
\jtree[xunit=5em,yunit=2em]
\! = {IP}
 <tri>{\triline{sono stati\hfil}}  ^<tri>[triratio=.95]{FP}
 :{F$_{\rlap{$\scriptstyle\rm[+strong]$}}$}!a {Voice$_{\rlap{$\scriptstyle\rm Pass$}}$}
 :{Voice\rlap{$_{\rm Pass}$}}@A2  {$\rm Agr_OP$}
 :{DP}!b  {${\rm Agr_O}'$}
 :[scaleby=.8 1]{$\rm Agr_O$}@A3  [scaleby=.8 1]{VP}
 <tri>[scaleby=.4 .7]{\rnode{A5}{$t_i$}\hskip1ex \rnode{A6}{$t_m$}}.
\!a = <shortvert>{arrestati$_i$}@A1 . \!b = <shortvert>{alcuni uomini$_m$}@A4 .
\psset{arrows=->}\nccurve[angleA=225,angleB=-45]{A2}{A1}
\nccurve[angleA=200,angleB=-90,ncurv=1.5]{A3}{A2}\nccurve[angleA=-130,angleB=-70]{A5}{A3}
\nccurve[angleA=-130,angleB=-70,linestyle=dashed]{A6}{A4}
\endjtree
\end{document}