Update llm_node.py

llm_node.py

@@ -2,13 +2,18 @@ from langchain_community.chat_models import ChatOpenAI
 
 def llm_node(question):
     llm = ChatOpenAI(model="gpt-3.5-turbo", temperature=0)
-    prompt = f"""You are solving a GAIA benchmark question.
-ONLY return the direct, final answer.
-Do NOT include any explanation or prefix.
+    prompt = f"""You are solving a GAIA benchmark evaluation question.
+
+⚠️ VERY IMPORTANT:
+- ONLY return the final answer, exactly as required.
+- DO NOT include explanations, prefixes, or notes.
+- Format the answer exactly as asked (e.g., comma-separated, plural, in requested order).
+- If the question asks for a list, give only the list, no intro.
+
 Here’s the question:
 
 {question}
 
-Your answer:"""
+Your direct answer:"""
     response = llm.invoke(prompt)
     return response.content.strip()