changed sentence foundry, foundry selector and textClass serialization
diff --git a/script/prepare_index.pl b/script/prepare_index.pl
index 2b98cfa..21d8dd9 100644
--- a/script/prepare_index.pl
+++ b/script/prepare_index.pl
@@ -124,7 +124,7 @@
 my @layers;
 
 # Base information
-push(@layers, ['OpenNLP', 'Sentences']);
+push(@layers, ['Base', 'Sentences']);
 push(@layers, ['Base', 'Paragraphs']);
 
 # OpenNLP