Question: who played young vito corleone in godfather 2
[{'answer': 'Robert De Niro', 'provenance': [{'wikipedia_id': '1625891', 'title': 'Vito Corleone', 'start_paragraph_id': 1, 'start_character': 228, 'end_paragraph_id': 1, 'end_character': 242, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1625891', 'title': 'Vito Corleone', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 430, 'bleu_score': 0.7525668284941031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6069700560068797367}, 'section': 'Section::::Abstract.'}]}]