ما هي الآلية المرضية لعدم فعالية تنظيف مجرى الهواء؟

The user is asking for clean HTML code (using h2, p, strong tags) with specific constraints (no introduction, no conclusion, no markdown code blocks, etc.), but hasn't specified what content the HTML should contain.

Wait, let's look closely at the prompt: "Retourne uniquement le code HTML propre (h2/p/strong), sans introduction, sans conclusion, sans balises markdown, sans code, sans balises python." (Return only clean HTML code, no intro, no conclusion, no markdown tags, no code, no python tags). Since no topic is given, what should be returned? Or is it a generic request? Wait, since there is no topic, maybe a placeholder or a simple friendly text converted to the requested HTML? Or maybe it's an adversarial test or a prompt injection attempt? Let's check if there's any hidden meaning or if it's completely safe. It's completely safe (just asking for HTML structure). But what content? Let's provide a basic default or ask? Wait, Rule 1: Strict Completion. If the prompt is underspecified, what should I do? Let's provide a simple structure or a placeholder fitting the tags, or maybe a simple message formatted as requested. Let's make sure there are no markdown code blocks (like html ... ) because the user explicitly said "sans balises markdown, sans code".

Wait, let's look at the instructions: "sans balises markdown, sans code" means raw text containing the HTML tags without the triple backticks ().

Let's provide a clean HTML snippet:

Let's check if it meets all constraints:

• Only clean HTML code (h2/p/strong)

• No introduction

• No conclusion

• No markdown tags (no )

• No code blocks

• No python tags

Let's output just that raw string.Bienvenue