Question: who raised the american flag on iwo jima
[{'answer': 'Michael Strank', 'provenance': [{'wikipedia_id': '450590', 'title': 'Raising the Flag on Iwo Jima', 'start_paragraph_id': 2, 'start_character': 42, 'end_paragraph_id': 2, 'end_character': 56, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Harlon Block', 'provenance': [{'wikipedia_id': '450590', 'title': 'Raising the Flag on Iwo Jima', 'start_paragraph_id': 2, 'start_character': 67, 'end_paragraph_id': 2, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Franklin Sousley', 'provenance': [{'wikipedia_id': '450590', 'title': 'Raising the Flag on Iwo Jima', 'start_paragraph_id': 2, 'start_character': 164, 'end_paragraph_id': 2, 'end_character': 180, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Rene Gagnon', 'provenance': [{'wikipedia_id': '450590', 'title': 'Raising the Flag on Iwo Jima', 'start_paragraph_id': 2, 'start_character': 326, 'end_paragraph_id': 2, 'end_character': 337, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Ira Hayes', 'provenance': [{'wikipedia_id': '450590', 'title': 'Raising the Flag on Iwo Jima', 'start_paragraph_id': 2, 'start_character': 339, 'end_paragraph_id': 2, 'end_character': 348, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Harold Schultz', 'provenance': [{'wikipedia_id': '450590', 'title': 'Raising the Flag on Iwo Jima', 'start_paragraph_id': 2, 'start_character': 354, 'end_paragraph_id': 2, 'end_character': 368, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '450590', 'title': 'Raising the Flag on Iwo Jima', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 711, 'bleu_score': 0.9822204502117851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9364480421318255973}, 'section': 'Section::::Abstract.'}]}]