Question: how many american lives lost at pearl harbor
[{'answer': '2,403', 'provenance': [{'wikipedia_id': '60098', 'title': 'Attack on Pearl Harbor', 'start_paragraph_id': 3, 'start_character': 542, 'end_paragraph_id': 3, 'end_character': 547, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]