--- a/sandbox.tex	Wed Jun 16 14:33:01 2010 -0700
+++ b/sandbox.tex	Wed Jun 16 14:39:25 2010 -0700
@@ -12,8 +12,47 @@
 
 \begin{document}
 
-$$\mathfig{.8}{tempkw/pinched_prod_unions}$$
+\mathfig{.6}{tempkw/left-marked-antirefinements}
 
 
+$$
+\begin{tikzpicture}
+\fill (0,0) circle (.1);
+\draw (0,0) -- (2,0);
+\draw (1,0.1) -- (1,-0.1);
 
+\draw [->,red] (1,0.25) -- (1,0.75);
+
+\fill (0,1) circle (.1);
+\draw (0,1) -- (2,1);
+\end{tikzpicture}
+\qquad
+\begin{tikzpicture}
+\fill (0,0) circle (.1);
+\draw (0,0) -- (2,0);
+\draw (1,0.1) -- (1,-0.1);
+
+\draw [->,red] (1,0.25) -- (1,0.75);
+
+\fill (0,1) circle (.1);
+\draw (0,1) -- (1,1);
+\end{tikzpicture}
+\qquad
+\begin{tikzpicture}
+\fill (0,0) circle (.1);
+\draw (0,0) -- (3,0);
+\foreach \x in {0.5, 1.0, 1.25, 1.5, 2.0, 2.5} {
+	\draw (\x,0.1) -- (\x,-0.1);
+}
+
+\draw [->,red] (1,0.25) -- (1,0.75);
+
+\fill (0,1) circle (.1);
+\draw (0,1) -- (2,1);
+\foreach \x in {1.0, 1.5} {
+	\draw (\x,1.1) -- (\x,0.9);
+}
+
+\end{tikzpicture}
+$$
 \end{document}