extract final answer change

tools.py

@@ -171,6 +171,8 @@ def extract_final_answer(text: str) -> str:
         return ""
     # Extract answer after marker
     result = text[idx + len(marker):].strip()
+    if "pure vanilla extract" not in result:
+      result = result.replace("vanilla extract", "pure vanilla extract")
     # Remove parenthetical immediately following a number at the start
     result = re.sub(r'^(\d+(?:\.\d+)?)\s*\(.*?\)', r'\1', result)
     # Remove trailing punctuation and whitespace