Question: how many people did the spanish flu kill
[{'answer': '50 to 100 million', 'provenance': [{'wikipedia_id': '198796', 'title': 'Spanish flu', 'start_paragraph_id': 1, 'start_character': 342, 'end_paragraph_id': 1, 'end_character': 359, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '198796', 'title': 'Spanish flu', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 490, 'bleu_score': 0.5331574764976781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1750221757233426827}, 'section': 'Section::::Abstract.'}]}]