Fix evaluation question

[NicolasLMP]

Why:
As an evaluator, I need to replace some evaluation questions like "35 mai 2018" .

DoD:

• Identify and locate the unwanted questions
• Replace with clear and relevant questions
• Ensure new question has proper ground truth answer
• Update evaluation dataset with corrected question
• Test evaluation system with corrected dataset
• Validate question clarity with team review

How:

• Update dataset file with new question and expected answer
• Test evaluation pipeline with updated dataset
• Review question clarity and relevance with team