Question: when do they find out serena didn't overdose
[{'answer': 'Gaslit', 'provenance': [{'wikipedia_id': '29398614', 'title': 'Gaslit', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 6, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]