#
diff -u -N context.txt context.txt
--- context.txt	2007-06-27 08:50:46.000000603 -0400
+++ context.txt	2007-07-11 17:24:45.000000000 -0400
@@ -1,3 +1,3 @@
 [a]
 [b]
 [c]
-[D]
-[E]
-[F]
+[D1]
+[E1]
+[F1]
 [g]
 [h]
 [i]
@@ -14,3 +14,3 @@
 [Xn]
 [o]
 [p]
-[Q]
-[R]
-[S]
+[Q1]
+[R1]
+[S1]
 [t]
 [u]
 [Xv]
