
\begin{tikzpicture}[>=latex,line join=bevel,]
  \pgfsetlinewidth{1bp}
%%
\pgfsetcolor{black}
  % Edge: x_3 -> x_2
  \draw [] (51bp,48bp) .. controls (46bp,41bp) and (39bp,32bp)  .. (34bp,25bp);
  % Edge: x_5 -> x_4
  \draw [] (102bp,46bp) .. controls (101bp,40bp) and (99bp,33bp)  .. (98bp,28bp);
  % Edge: x_1 -> x_2
  \draw [] (17bp,46bp) .. controls (19bp,40bp) and (20bp,33bp)  .. (22bp,28bp);
  % Edge: x_1 -> x_3
  \draw [] (28bp,60bp) .. controls (34bp,60bp) and (40bp,60bp)  .. (46bp,60bp);
  % Edge: x_3 -> x_4
  \draw [] (69bp,48bp) .. controls (74bp,41bp) and (81bp,32bp)  .. (86bp,25bp);
  % Edge: x_3 -> x_5
  \draw [] (74bp,60bp) .. controls (80bp,60bp) and (86bp,60bp)  .. (92bp,60bp);
  % Node: x_4
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (94bp,14bp) ellipse (14bp and 14bp);
  \draw (94bp,14bp) node {$x_4$};
\end{scope}
  % Node: x_5
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (106bp,60bp) ellipse (14bp and 14bp);
  \draw (106bp,60bp) node {$x_5$};
\end{scope}
  % Node: x_2
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (25bp,14bp) ellipse (14bp and 14bp);
  \draw (25bp,14bp) node {$x_2$};
\end{scope}
  % Node: x_3
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (60bp,60bp) ellipse (14bp and 14bp);
  \draw (60bp,60bp) node {$x_3$};
\end{scope}
  % Node: x_1
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (14bp,60bp) ellipse (14bp and 14bp);
  \draw (14bp,60bp) node {$x_1$};
\end{scope}
%
\end{tikzpicture}
