\documentclass[11pt,leqno]{article}

\newcommand{\pathtotrunk}{./}
\input{preamble}
\input{text/article_preamble}
\input{text/kw_macros}

%\title{Blob Homology}
\title{Sandbox}
\begin{document}

\newcommand{\vertex}{node[circle,fill=black,inner sep=1pt] {}}


\end{document}