Index: src/sen-nl.sed
===================================================================
--- src/sen-nl.sed	(revision 743cc4f1c9fc321b759aedbaf8f52e759740d371)
+++ src/sen-nl.sed	(revision 743cc4f1c9fc321b759aedbaf8f52e759740d371)
@@ -0,0 +1,6 @@
+#!/bin/sed -rf
+
+1 s/^(([0-9]+)[ \t][0-9]+[ \t].*)$/\2 00 BOS \*\n\1/
+t
+$! s/(([0-9]+)[ \t][0-9]+[ \t][[:alpha:]]+[ \t]+[[:print:]]*\\n.*)$/\2 00 EOS *\n\2 00 BOS *\n\1/
+$ s/^(([0-9]+) .*)$/\1\n\2 00 EOS */'