在美国做牙冠 多少钱？

The user wants clean HTML code (h2, p, strong), with no introduction, no conclusion, no markdown formatting tags, no code block markers, and no python tags. But wait, what is the topic? The prompt doesn't specify a topic, it just says "Retourne uniquement le code HTML propre (h2/p/strong), sans introduction, sans conclusion, sans balises markdown, sans code, sans balises python." Let's check if there's any implicit topic or if I should provide a default clean HTML structure, or if the user forgot the content. Wait, since no topic is provided, let's provide a generic example or check if there's anything else. Wait, 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." But the user specifically requested only HTML code with no intro/outro. If I ask a clarifying question, it violates the constraint of returning only HTML. Let's provide a placeholder or standard structure, or maybe a simple greeting/message in HTML format.

Wait, let's look at the instruction: "Retourne uniquement le code HTML propre (h2/p/strong)..." Let's output something simple like:

Let's make sure it contains no markdown code blocks (), no python tags, no intro, no conclusion. Just raw HTML text.InformationVeuillez préciser le sujet ou le texte que vous souhaitez convertir en HTML.