Index: trunk/doc/design/03_drawing.html
===================================================================
--- trunk/doc/design/03_drawing.html	(revision 181)
+++ trunk/doc/design/03_drawing.html	(revision 182)
@@ -295,8 +295,7 @@
 can represent concrete objects. The conn field is a list of <i>oid</i>s
 of drawing objects that are directly contributing to the connection, but
 the logical connection is made on the immediate parent group of these
-drawing objects. The immediate parent group must be of role must not
-be symbol.
+drawing objects. The immediate parent group must not be of role <i>symbol</i>.
 
 <p>{des3:48} The conn list must list drawing objects so that at least two
 different groups are referred.