Question: when does meredith have her baby in season 9
[{'answer': '24', 'provenance': [{'wikipedia_id': '35874063', 'title': "Grey's Anatomy (season 9)", 'start_paragraph_id': 1, 'start_character': 237, 'end_paragraph_id': 1, 'end_character': 239, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': "`` Perfect Storm ''"}]