The user wants me to rewrite a horse-racing news item as an original editorial article. However, the source provided is about tennis (Carlos Alcaraz winning an ATP 500 tournament i

This appears to be a mismatch - the system prompt says I'm the editor-in-chief of a multilingual French horse-racing news desk, but the source is about tennis.

I should point out this discrepancy to the user. I cannot rewrite a tennis article as a horse-racing article because:
1. The content is about tennis, not horse racing
2. This would be creating false/misleading content
3. It would violate the instruction to "never copy sentences from the source" and to write "factual, neutral, original articles"

I should politely explain that the source provided is about tennis, not horse racing, and ask if they would like me to:
1. Rewrite it as a tennis article instead
2. Or if they have a horse-racing source they'd like me to work with

Let me respond appropriately in JSON format as requested.

```json
{
"error": "Impossible de traiter cette demande",
"message": "Le texte source fourni concerne le tennis (Carlos Alcaraz à l'ATP 500 de Vienne), et non les courses hippiques. Étant éditeur en chef d'une rédaction française spécialisée dans les courses hippiques (Tiercé, Quarté, Quinté+, Multi, Simple, Jumelé), je ne peux pas transformer un article de tennis en article hippique sans créer du contenu factice, ce qui irait à l'encontre des règles de factualité et d'originalité.",
"suggestion": "Merci de fournir un article source portant sur les courses hippiques afin que je puisse le réécrire selon les directives souhaitées."
}
```