飛行機の手荷物にシャンプーは入れられますか？

Answering this prompt requires generating content (HTML formatting/code structure) according to specific formatting constraints ("uniquement le code HTML propre"). However, the user hasn't provided the topic or content to be formatted into HTML!

Let me check if I should ask a brief clarifying question or if this is missing critical information.

Wait, the prompt says: "Retourne uniquement le code HTML propre (h2/p/strong), sans introduction, sans conclusion, sans balises markdown, sans code, sans balises python."

Since the user did not give any text, topic, or subject matter to format into HTML, critical information is missing.

Wait, according to RULE 1: CLARIFICATION FIRST: "If critical information is genuinely missing and the prompt cannot be reasonably answered without it, ask a brief clarifying question before generating a full solution."

Let's reply in French concisely asking what topic/text they would like converted into HTML.

Wait, the prompt strictly asks to return ONLY clean HTML code without intro, without conclusion, without markdown. But since there's no content, what topic should be rendered? If I ask a clarifying question, it breaks the "only return HTML code" constraint if they expected a generic template, OR it follows the workflow. Wait! Let's check rule 1: "If critical information is genuinely missing and the prompt cannot be reasonably answered without it, ask a brief clarifying question before generating a full solution."

Let's keep the clarification very simple and direct in French. Or should I provide a simple placeholder structure or ask? Asking a brief question is explicitly required by Rule 1 when critical info is missing.

Let's double check if there's any other instruction. "Direct answer first".

Wait, could I provide a simple HTML template/example while asking, or just ask? "Quel sujet ou texte souhaitez-vous mettre en forme en HTML ?"

Let's ask the question clearly and briefly.Quel sujet ou texte souhaitez-vous mettre en forme en HTML ?