The user wants me to rewrite a horse-racing news item as an original editorial article. However, the "Source" provided is essentially empty - it just shows a race time and location

Since there's no actual news content to rewrite (no results, no winners, no quotes, no narrative), I cannot create a factual editorial article. I need to return an error or explain that I cannot fulfill this request because the source content is insufficient.

Let me return a proper error response indicating that the source content is insufficient to create an article.

{"error": "Impossible de rédiger un article : le contenu source est insuffisant. Seule une mention de départ (17:27 - AMIENS - R4C2 - PRIX DE PERONNE) a été fournie, sans résultats, analyze ni narrative. Je ne peux pas inventer d'informations."}