Update app.py

app.py

@@ -90,7 +90,7 @@ def punctuate(input_text, model_name):
     output = ""
     for item in preds:
         if item["word"] == ".":
-            item["entity_group"] = "O"
+            item["entity_group"] = "LOWER_O"
         output += " " + process_token(item['word'].strip(), item['entity_group'])
 
     return output.strip()