diff --git a/Senseval_Prep/Senseval3/cl23.mrg b/Senseval_Prep/Senseval3/cl23.mrg
index 0762f6cd08a248beae0d1a336aa2323de5408b1b..4987e8b4f23fcbd1ca75dd92a779e837caa60f5c 100644
--- a/Senseval_Prep/Senseval3/cl23.mrg
+++ b/Senseval_Prep/Senseval3/cl23.mrg
@@ -1,3 +1,15 @@
+*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*
+*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*
+*x*                                                                     *x*
+*x*            Copyright (C) 1995 University of Pennsylvania            *x*
+*x*                                                                     *x*
+*x*    The data in this file are part of a preliminary version of the   *x*
+*x*    Penn Treebank Corpus and should not be redistributed.  Any       *x*
+*x*    research using this corpus or based on it should acknowledge     *x*
+*x*    that fact, as well as the preliminary nature of the corpus.      *x*
+*x*                                                                     *x*
+*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*
+*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*
 
 ( (S 
     (NP-SBJ (DT That) )