Question: how did the mom die in the secret garden
[{'answer': 'a cholera epidemic', 'provenance': [{'wikipedia_id': '410873', 'title': 'The Secret Garden', 'start_paragraph_id': 4, 'start_character': 288, 'end_paragraph_id': 4, 'end_character': 306, 'bleu_score': 1.0, 'section': 'Section::::Plot summary.\n'}]}, {'provenance': [{'wikipedia_id': '410873', 'title': 'The Secret Garden', 'start_paragraph_id': 4, 'start_character': 280, 'end_paragraph_id': 4, 'end_character': 624, 'bleu_score': 0.87675602475541, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7852853864465151876}, 'section': 'Section::::Plot summary.\n'}]}]