Question: how many american lives were lost in the revolutionary war
[{'answer': '50,000', 'provenance': [{'wikipedia_id': '202077', 'title': 'United States military casualties of war', 'start_paragraph_id': 9, 'start_character': 336, 'end_paragraph_id': 9, 'end_character': 342, 'bleu_score': 1.0, 'section': 'Section::::Notes.\n'}]}]