\begin{tikzpicture}
	\path [use as bounding box] (-2,-2) rectangle (2,2);
	\begin{pgfonlayer}{nodelayer}
		\node [style=none] (0) at (-0.5, 0) {};
		\node [style=none] (1) at (0.5, 0) {};
		\node [style=none] (2) at (0, -0.75) {};
	\end{pgfonlayer}
	\begin{pgfonlayer}{edgelayer}
		\draw [in=0, out=-90] (1.center) to (2.center);
		\draw [in=-270, out=90, looseness=0.75] (0.center) to (1.center);
		\draw [in=-90, out=-180] (2.center) to (0.center);
	\end{pgfonlayer}
\end{tikzpicture}