Update formatter_node.py

formatter_node.py

@@ -1,2 +1,13 @@
+import re
+
 def formatter_node(llm_output):
-    return llm_output.strip()
+    cleaned = llm_output.strip()
+
+    # Remove common LLM prefixes
+    cleaned = re.sub(r'^(Answer:|Final Answer:)\s*', '', cleaned, flags=re.IGNORECASE)
+
+    # Remove enclosing quotes if any
+    if cleaned.startswith('"') and cleaned.endswith('"'):
+        cleaned = cleaned[1:-1]
+
+    return cleaned.strip()