Update app.py

app.py

@@ -28,9 +28,14 @@ TEACHER_SYSTEM = "You write search-style questions that a passage directly answe
 TEACHER_TEMPLATE = """You are given a passage. Write {n} questions that the passage directly answers.
 
 Rules:
-- Each question must be answerable using ONLY this passage.
-- Vary the type: factual, yes/no, and a comparison or "why/how".
-- Natural, like a real user search query. Do NOT write "according to the passage".
+- Every question MUST be answered explicitly by the passage.
+- Do not combine facts from different parts of the passage.
+- Do not infer or assume information.
+- If a detail is not explicitly stated, do not ask about it.
+- Use only facts that appear verbatim or are directly stated.
+- Vary the question types: factual, yes/no, comparison, and why/how.
+- Write naturally, like a real search query.
+- Return ONLY valid JSON.
 - Write the questions in {language}.
 
 Return ONLY JSON: {{"questions": [{slots}]}}