qtree spacing and alignment

Question

I have the following qtree

\begin{center}                                      

\Tree[.{\tiny \ttfamily \itseries educated at}{\tiny \ttfamily ( Bush, University of Texas at Austin)}  [. [. \textit{\tiny 193938.xml} ]
    [. \textit{\tiny sentence 2} ]]
    [. [. [. [. \textit{\tiny Q Value} \textit{\tiny University of Texas at Austin} ]
    [. [.\textit{\tiny Q Value} ]\textit{\tiny Bush} ] ] ][. [. [. [. \textit{\tiny P26} \textit{\tiny educated at} ]]]]]]

\end{center}  

The alignment is really messing up my paper.

Right now it looks like this:

as you can see, it just sort of trails off into the margin there.

How can I fix that?

I guess it could be easily done if I could just move the center branch furthur up so that the one on the right didn't jut out as far.

This is the complete project

UPDATE

\begin{forest}
[{\tiny \ttfamily \itseries educated at}{\tiny \ttfamily ( Bush, University of Texas at Austin)}, qtree edges,s sep=1cm [[\ts{.}] [[[$\epsilon$]]

[$\epsilon$]]][[$\epsilon$]]] \end{forest}

:/ How to use forest?

I hope it can look like this:

Answer 1

Use the forest package. It's much better than qtree. And it's meant to deal precisely with proper alignment.

Answer 2

Here's a forest solution to get you started.

If you run into a divide by 0 error, you will need to tweak the value of outer ysep in the definition of the nice trees style; this is a workaround from the comments on this question about a bug that causes this error.

\documentclass{article}

\usepackage{forest}
\forestset{
    nice trees/.style={
    for tree={
      parent anchor=south,
      child anchor=north,
      align=center,
      base=top,
      inner sep=1pt,
      l-=4ex,
      before typesetting nodes={
          if content={}{
            for parent={
              for children={anchor=north},
              calign=fixed edge angles,
              calign angle=60,              
            },
            inner sep=0pt,
            outer ysep=-0.49pt,
            calign=fixed edge angles,
            calign angle=60,       
          }{},
      },
    },
  },
}

\begin{document}

\begin{forest}
nice trees
[\textsc{Data Representation}\\{\textit{educated at}(Bush, UT Austin)}
    [
        [filename]      
        [sentence \# ]
    ]
    [
        [
            [
                [$Q$ value]
                [English]
            ]
            [
                [$Q$ value]
                [English]
            ]
        ]
        [
            [$P$ value]
            [English]
        ]
    ]
]  
\end{forest}

\end{document}

If the tree still doesn't fit horizontally after implementing forest, here are some questions/answers that give several ideas of ways to make it fit: Margins and positioning with tikz-dependency, How to format a language tree?, Reducing forest tree width without squashing.

I don't know if you actually want "Data Representation" as part of the top node of the tree, but at least it shows you how you can use \\ to split nodes into multiple lines (this is allowed because of align=center in the nice trees style).