--- a/LIME-examples/simple-test/test.graph.xml
+++ b/LIME-examples/simple-test/test.graph.xml
@@ -1,4 +1,8 @@
 <!--=============================================================
+Example graph for LIME
+
+Copyright 2008 Pjotr Kourzanov
+
 This file is part of LIME.
 
 LIME is free software: you can redistribute it and/or modify
@@ -12,7 +16,11 @@
 
 You should have received a copy of the GNU General Public License
 along with LIME.  If not, see <http://www.gnu.org/licenses/>.
+
+<edge type="init_fifo"><from><node id='delay'><port id="out"/></node></from>
+                  <to><node id='copy'><port id="in"/></node></to></edge>
 ===============================================================-->
-
 <edge type="fifo"><from><node id='source'><port id="buf"/></node></from>
+                  <to><node id='copy'><port id="in"/></node></to></edge>
+<edge type="fifo"><from><node id='copy'><port id="out"/></node></from>
                   <to><node id='sink'><port id="buf"/></node></to></edge>