%% 
%%  A DANTE-Edition example
%% 
%%  Example 33-01-5 on page 664.
%% 
%%  Copyright (C) 2011 Herbert Voss
%% 
%%  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.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{225.70511pt}
\setlength\parindent{0pt}

\usepackage{pst-jtree}

\begin{document}
\jtree[xunit=5em,yunit=2em]
\! = {IP}
   <tri>{\triline{sono stati\hfil}}  ^<tri>[triratio=.95]{FP}
   :{F$_{\rlap{$\scriptstyle\rm [+strong]$}}$}!a {Voice$_{\rlap{\scriptsize Pass}}$}
   :{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}
