My first experiment with qtree puzzled me: why is the first tree output (it is copied from the manual) and the second not?
\documentclass[msmallroyalvopaper
]{memoir}
\usepackage{qtree}
\begin{document}
text - this works:
\Tree [.DP my pony ]
but this produces nothing:
\Tree [.Human Person Stuff]
end
\end{document}
